Question

# application of two sample tests Hypothesis proportion female adults in maine 45-60 who smoke greater than

proportion female adult 45-60 in MA who smoke.

Independent Poll discovers 68 out of 140 female Maine residents aged 45-60 smoke- and 79 out of 162 MA female age 45 – 60 smoke. Propose a hypothesis test to compare these two populations.

Statistics and Probability

## 4 points

Question 2

1. Which of the following can be reduced by proper interviewer

Question 1
1. Which of the following is most likely a population as opposed to a sample?
2. respondents to a newspaper survey
3. the first 5 students completing an assignment
4. every third person…
Statistics and Probability

Question

# Hello , I need help with the following math problem. Can you please show solution ?Question

1

Solve the problem. A sprinkler rotates 360° to water a circular region. If the total area watered is approximately 2,200 yd 2 determine the radius of the region (the radius is length of the stream of water). Round the answer to the nearest yard.

Question 2

Find the value of n so that the expression is a perfect square trinomial and then factor the trinomial.

Find the value of n so that the expression is a perfect square trinomial and then factor the trinomial

t2 -13/4t + N

Statistics and Probability

Question

# If we have two group means to compare, we use a z or t test as we have seen, assuming we can meet the assumptions

of a parametric test. If we have three or more group means to compare, we would have to do multiple z or t tests, but this is just not feasible, and multiple tests would increase our probability of type 1 error. So we use ANOVA. ANOVA uses the F ratio (a ratio of Variances) to inform us on any differences among group means. Discuss.

How do you interpret the ANOVA table in Checkpoint 4?

Statistics and Probability

## Please see attachment for 3 questions This is for a probability and statistical method course Book used is

Mercedes Arias – Assignment 1
1. Define a population. Give an example of a population. In statistics, a population is a set of similar items or events which is of interest for some
question or…
Statistics and Probability

Question

# Talking about sample size,Which of the following is needed for a sample size

calculation?

a. What variable you will measure

b. Desired potential for a Type 1 error

c. Knowing if it will be a random sample

d. The size of the population from which you will collect your random sample

Which of the following is true about sample size?
Statistics and Probability

Question

# Problem Set 4: Research Scenario: A community psychologist is interested

in whether spending time in after-school programs is predictive of the number of arrests as a young adult in a high-risk neighborhood. After collecting records on 17 individuals over 8 years, she compiles the information listed in the table below. Does the time spent in after school programs predict the number of arrests after age 17?

Using this table, enter the data into a new SPSS data file. Use the appropriate test to analyze the question and the appropriate graph.

1. Paste SPSS output.
2. Results section based on your analysis including independent and dependent variables, confidence interval, effect size, 1 or 2 tailed and the p value.

Problem Set 5:

Research Scenario: An addictions counselor is compiling data on the main substance used by each of his 23 clients before treatment. Based on the admissions data he has, he divides the substances into three main categories: Alcohol, Opioids, and Cocaine/Crack Cocaine. He records the number of clients in each category based on their reports of which substance they primarily used before seeking treatment. The frequencies are listed in the table below. Is the number of clients spread equally across the three types of substances?

Using this table, enter the data into a new SPSS data file. Use the appropriate test to analyze the question and the appropriate graph.

Problem Set 5:

Research Scenario: An addictions counselor is compiling data on the main substance used by each of his 23 clients before treatment. Based on the admissions data he has, he divides the substances into three main categories: Alcohol, Opioids, and Cocaine/Crack Cocaine. He records the number of clients in each category based on their reports of which substance they primarily used before seeking treatment. The frequencies are listed in the table below. Is the number of clients spread equally across the three types of substances?

Using this table, enter the data into a new SPSS data file. Use the appropriate test to analyze the question and the appropriate graph.

1. Paste SPSS output.
2. Results section based on your analysis including independent and dependent variables, confidence interval, effect size, 1 or 2 tailed and the p value.

Statistics and Probability

## I have attached a document that is for extra credit in my statistics class I have no idea how to do any of these

Solution:
a) Here, n=10, p=1/4=0.25, q=1-p=0.75
To pass the quiz student has to answer 8 correct options.
Probability the student will pass the quiz C (10,8)(0.25)8 (0.75) 2 0.0004…
Statistics and Probability

## Im working on probability in stats and am having trouble understanding it

I was wondering if I could get
Probability
No Data Set Needed
1.1 Situation: The High School and Beyond data is from a large-scale longitudinal study
conducted by the National Opinion Research Center (1980) under contract with…
Statistics and Probability

## 1 In a sample of 610 Bostonarea residents selected on July 2 209 reported that they were

Confidence Interval Estimate for the Proportion
Data
Sample Size
Number of Successes
Confidence Level 610
209
80% Intermediate Calculations
Sample Proportion
0.3426229508
Z Value
-1.281551566…
Statistics and Probability

Question

# As you continue to help Ima at Getta Byte, Consider the following questions for the Getta Bill project. How should

the risks be prioritized? Who should do the prioritization of the project risks? How should project risks be monitored and controlled? Who should develop risk responses and contingency plans? Who should own these responses and plans?

Transcript

Getta Byte Software Risk Management We need a risk management plan for our project. We are meeting to brainstorm what the risks could be. I don’t like talking about risks. It makes them come true. No, it doesn’t. It helps us decide what to do if something goes wrong. Network capacity could be a problem during data transfer. Great start! Let me get it into the risk register. Let’s think about a possible response to avoid, mitigate, transfer, or accept these risks. We still need to do qualitative analysis to decide probability and impact. Not today, my brain hurts. The end

Project Management

## 1 Discuss the purposes of doing research Give an example of each by using a hypothetical from the field of

1. Discuss the purposes of doing research. Give an example of each by using a
hypothetical from the field of criminal justice.
The main purpose of pure scientific research is to find an explanation…
Statistics and Probability

## See attach I will like the right answers to compare with my quiz

Week 2 – Quiz 2 Time Remaining: Question 1. 1. In a screening test, the probability of a person with the disease having a positive test is:
(Points : 1)
Sensitivity
Specificity
Positive Predictive…
Science

## Find Pr{N(t)&gt

=k} is a renewal process having lifetime density

f(x)= rho*exp^(-rho(x-delta)), for x

Finding Pr{N(t)gt;=k}, and it is a renewal process having lifetime density
We know P(N(t) = k) = Fk(t) − Fk+1(t)
where f(x) = rho * exp(-rho 9x-delta)) /x/ ≤ 1 or Fk(t) = P[Sk ≤ t] and Sk =…
Statistics and Probability

Question

# A management consulting team needs a team of four to analyze the operations of a new client. The team should

comprise an accountant, a production specialist, a finance specialist, and a management specialist. On its staff, the consulting firm has available six accountants, five production specialists, three finance specialists, and eight management specialists. How many different teams could be formed from the available individuals

Statistics and Probability

Question

# Question 1Suppose that each individual in a large insurance portfolio

incurs losses according to an exponential distribution with mean (1/ λ), where λ varies over the portfolio according to a G(α, δ) mixing distribution. The respective densities of the two distributions are given by:

(a) Show that the marginal distribution of losses follows a Pareto distribution, i.e. P(α, δ)

(b) Use the mixing formulation of the Pareto to deduce that if X~P(α, δ), then E(X) = α / (δ – 1)

Statistics and Probability

## Course for micro econ and I am not so good with uncertainty

1. A wage earner, Mister T, with initial wealth to = \$1600, has a Bernoulli utility
function u(:r) = ﬂ. His monthly wage amounts to \$2000. He can be sacked
with probability 0.2. An insurance company designs an insurance contract against
unemployment. If Mister T pays an insurance premium of \$156, he will receive
\$1056 if he is sacked. There are only two periods: a ﬁrst one at which decisions are
taken and a second one at which all uncertainty is resolved. Assume that Mister T’s preferences satisfy the conditions of the expected utility theorem. (a) Does Mr. T decide to insure himself against unemployment? (b) Supposing that the insurance premium is \$156, what is the minimum amount
of money that the insurance company must disburse to Mr. T in case of unemployment, if it wants Mr. T to buy a contract?
Economics

## Problem 87Vollmer Manufacturing makes three components for sale to refrigeration

; 1st row is for objective function; last a) row is gt; 0
Optimal solution, C1 = 600; C2 = 700 and C3 = 200
b) C1 – No lower limit to 9.00
C2 – 5.33 to 9.00
C3 – 6.00 to No Upper Limit
c) 4400 to…
Statistics and Probability

Green amp; Salkind: Lesson 40, Exercises 1–4 1. Use the method reviewed in the presentation to weight the cases for this data set.
(no points—done in data file)
2.
Descriptive Statistics
Std….
Statistics and Probability

Question

# 1, The drug Plavix requires the enzyme CYP2C19 to take it from the prodrug form to the drug form (enzyme A

below) and it requires the enzyme CES1 to convert it from active to inactive (enzyme 1 below). The active form of the drug is effective in preventing blood clots but is toxic in higher doses. Individuals with a mutation in this CES1 gene produce a version of CES1 that is not functional. You are a physician trying to determine the dosage of Plavix for a patient who is homozygous for the mutated version of the gene. What should you do?

• Decrease the normal dosage because they are making too much of the drug
• Increase the normal dosage because they are making too much of the toxic endproduct
• Increase the normal dosage because they are not making enough of the toxic endproduct
• (Choose another drug as the individual will likely suffer from too much toxicity? my guess)

2, In pea plants, yellow peas (Y) are dominant to green (y) and round peas (R) are dominant to wrinkled (r). Two pea plants were crossed, one with yellow round peas and one with green wrinkled peas. What were the genotypes of the parents?

• The yellow round was YYRR and the green wrinkled was yyrr
• The yellow round was YyRr and the green wrinkled was YyRr
• The yellow round was yyrr and the green wrinkled was YYRR
• The yellow round was YYrr and the green wrinkled was yyRR

3, When Mendel crossed a plant with smooth green peas and a plant with wrinkled yellow peas, what did he find?

• Color and shape of pea are linked (if you have a smooth pea it has to be green)
• Color and shape of pea are not linked (if you have a smooth pea, it can be green or yellow)
• Only yellow peas produce leaves
• Only smooth peas produce leaves

4, A cross is performed between a plant with genotype TtYy and a plant with genotype Ttyy. T refers to height (tall) and Y refers to color (yellow or white). If the two genes independently assort, what is the probability, expressed as a percent, that the offspring will be heterozygous for the height gene?

Science

## Attached are chapter 11 and 12 practice questions I would like these done (show all work please where indicated)

Chapter 12 Practice Questions
1. A __________________ is a hypothesis test that includes two nominal independent variables and an interval
dependent variable, and a __________________ is a…
Statistics and Probability

## Hi!

I attached the questions that I need answered.

I need the work shown or any explanations stated.

Could

STAT 200 Final Examination Spring 2016 OL1/US1 Page 1 of 11 STAT 200 Introduction to Statistics Name______________________________ Final Examination: Spring 2016 OL1 / US1 Instructor…

Statistics and Probability

Question

# Stephan has the utility function U(w) = 3, where w is his wealth. Initially, Stephan has w = \$100. Would Stephan

pay \$5 to take the following gamble: With probability 0.03 he wins \$25; otherwise, he wins nothing. Explain why insurance companies usually do not offer earthquake insurance.

Economics

## This project is for InTelTutor only please Hi IntelTutor!!!this is ConstableComputerQuail57 remember me? You

Imagine you are a manager at a major bottling company. Customers have begun to complain that the
bottles of the brand of soda produced in your company contain less than the advertised sixteen (16)…
Statistics and Probability

Question

# the following sample data sets. Find the appropriate center of the data (mean or median) and the appropriate

measure of variability (standard deviation or interquartile range). Explain why you chose these measures. Describe the shape of the data distribution and explain why you chose that shape. Include any information that will help your readers understand or visualize your data set.

DATA SET B 302.4 262.8 255.6 214.2 230.4 345.6 237.6 253.8 370.8 333.0 271.8 266.4 280.8 271.8 358.2 354.6 228.6 302.4 270.0 266.4 361.8 273.6 252.0 307.8 295.2 297.0 313.2 295.2 183.6 320.4 252.0 279.0 304.2 289.8 280.8 372.6 288.0 289.8 320.4 288.0

R
S
W X
Z
AA
AE
B
C
D
E
G
H
K
O
Q
1
302.4
183.6
Bin
Frequency
Histogram
262.8
mean
214.2
180
0
3
255.6
288.5
AVERAGE(A1:A40)
228.6
190
214.2
230.4
200
0
230.4
median
237.6
210
0 –
345.6…
Statistics and Probability

## The field of Operations Research involves the use of statistics and simulation to make business decisions Find

The field of Operations Research involves the use of statistics and simulation to make business
decisions. Find an example of operations research in practice today.
You would need to:
1. Find an…
Statistics and Probability

Question

# An analyst has been studying a particular stock and has come to the following two conclusions: the

probability that the stock will rise on a particular day is 0.3

• the rise or fall of the stock on any particular day is independent of the rise and fall of the stock on any other day
• Calculate the probability that over the next week (7 days) the number of days that the stock will rise is not 3. Give your answer as a decimal to 2 decimal places.

Probability =

[1 mark]-
Statistics and Probability

## Would send me the answer for the question 1 please find enclosed the questions

Problem 1 (25 pts)
The cost of 14 models of digitals cameras at a
camera specialty store during 2014 was as follows: 340 450 450 280 220
340 290 370 400 310 340 430 270 380
1. Compute mean, median,…
Statistics and Probability

## Please complete your solutions in excel Be sure to use separate tabs for each question

UMUC’s Business Management department is concerned that dual degree stu Two independent random samples have been selected. 150 observations from population 1 (dual degree
It is known from past…
Statistics and Probability

Question

# Suppose researchers are interested in a program that is intended to reduce overall calorie intake in a group of

women looking to lose weight after pregnancy. The program manager sets a daily calorie intake limit of 2,050calories/day. Which of the following represents the null and alternative hypotheses representing a two-sided one sample t-test for the average calorie consumption in the weight management program?

Statistics and Probability

## The data for Questions 1 and 2 of this assignment is the houseprice sample of size 50 that you selected in Part 2

Question 1
Revisit Part 2 of Assignment 1.
A real estate agent has received data on 1000 houses that were sold last year in a
suburban community. Included in this data set are observations on the…
Statistics and Probability

Question

# Hi,I need help with this answer in Excel.The Laurenster Corporation is

getting into the construction business. A list of activities and their optimistic, most likely, and pessimistic completion times are given in the following table for the next construction project.

(a) Develop a project network for this problem. (b) Determine the expected duration and variance for each activity.

(c) Determine the ES, EF, LS, LF, and slack time for each activity. Also determine the total project completion time and critical path(s).

(d) What is the probability that this job will finish in 38 days or less?

Math

## I need help understanding how to use SPSS with the specific tasks that are attached

I have no idea how to use
Question:
I need help understanding how to use SPSS with the specific tasks that are attached. I have no
idea how to use the program. Here are the questions.
Locate the data set…
Statistics and Probability

## Would anyone have all the formulas needed for the final for math 339 applied statistics for chamberlain school

Basic Statistics Formulas
Population Measures Probability 1X
xi
n
1X
(xi − x)2
Variance σ 2 =
n
r
1X
(xi − x)2
Standard Deviation σ =
n
Mean µ = P (A or B) = P (A) + P (B) − P (A and B)…
Statistics and Probability

## About two assignments of STAT 2509 ( which about Computational Statistics (Statistical Modeling II))， in

Question 1: Question 2: Question 3: Question 4: Question 5: (a) Two-sided hypothesis: The research hypothesis, i.e. the alternative hypothesis that is set for testing a significance difference…

Statistics and Probability

Question

# Question 11 A researcher wants to construct a 99% confidence interval for the proportion

of people who changed jobs in the past year. What sample size is needed so that the confidence interval will have a margin of error of 0.042 ?

Question 13

Consider the following hypotheses:

H0: mean = 7

H1: mean 7

A test is performed with a sample of size 36. The sample mean was 2.50 and the population standard deviation is 18. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the P-value.

Statistics and Probability

## 1 ) Because the

QQ Plot
shows most
With more and more students utilizing bus service, especially during the colder months, it is pertinent to reduce the wait times for students. A local high
school’s Bus Route 65 has a posted pick up time for Stop 1 on the route, at the corner of Ave B and 56th Street, to be 7:03 am. The bus cannot be
there any earlier than 7:03 am, or students will not be ready. The rest of the stops are dependent upon this Stop 1’s timing, so a bus driver is asked to
record the time (in minutes and seconds) that they were at Stop 1, and the administration will pick a random sample of 19 of the days to analyse. The
data will be recorded as minutes waiting after the 7:03 am posted time, and may include decimals for precision.
The administration will take action if it is likely that the population mean number of minutes waiting after 7:03 am at Stop 1 on Bus Route 65 is greater
than 3 minutes. That is, they will test these hypotheses at a 5% level:
Ho : H = 3 minutes
Ha: H gt; 3 minutes
Statistics and Probability

## I need Help with Unit 9 Project PLEASE!!!I have attached the document along with the steps needed to solve

Unit 9 Project Review Sheet
1. Allen Machines specializes in developing weed-harvesting equipment that is used to clear small lakes
of weeds. Allen Machines is contemplating the construction of a…
Statistics and Probability

## A sociologist is interested in the relation between x = number of job changes and y = annual

Question

Interpretation

For each less job change, the annual salary increases by an amount that falls outside the confidence interval.

For each less job change, the annual salary increases by an amount that falls within the confidence interval.

For each additional job change, the annual salary increases by an amount that falls within the confidence interval.

For each additional job change, the annual salary increases by an amount that falls outside the confidence interval.

Statistics and Probability

## We described several algorithms for learning classifiers including Logistic Regression Linear Discriminant

1 Logistic regression
This is the appropriate regression analysis which is conducted when the dependent variable is
dichotomous.
The logistic regression is a predictive analysis; it is used to…
Statistics and Probability

## Talk about where you see probabilities in your work and personal life not everyone can talk about

In the company I was working there are 50 employees. The classification of the employees
according to their major of study and their degree in that major is as given below: Major | Degree…
Statistics and Probability

The more simple and straightforward the response ,
Suppose I want to predict the sales of Café Coffee Day in the next month. My dependent
variable is sales of Café Coffee Day. Independent variables are customer satisfaction ratings and
service…
Statistics and Probability

Question

# Given that a nurse has NOT had a voluntary screening uptake, what is the probability that they were worried about

their future health? (Conditional probability) Report in 3 decimals

Statistics and Probability

## Hey Professor sorry about bringing this question to you so late i would really appreciate if you can help

Customer Order Processed
Units Ordered
Units Shipped
Correct Units Shipped
Correct Customer Invoices
Total Labor Hour (units/hr) September August
50,000
40,000
300,000…
Statistics and Probability

;

Question

# I need complete solutions for my statistic assignment. Please see attached

Math 12
Chapters 6-9 Worksheet
so show work whenever…
Statistics and Probability

Question

# Need help with understanding questions 16-25.Thanks

Question 16:
a) In this case we need to select 12 items from 19 items where the order does not matter so
we need to use the approach of combination.
Thus required number of ways = 19C12 = 50388
b)…
Statistics and Probability

## Hi I have a homework question that I just don’t think I have the formula right Question

Question

Question:

The logistic equation is commonly used to model growth phenomena in biological populations: Y = (L/(1+e^-a(x-b)), where Y is the response, x is the input, L, a, and b are constants. Assume that L is given as L0, find the least squares estimations of a and b.

If L0 it can be treated as a constant. So we are looking for P(a) and P(b). I was trying to write the bottom part taking the reciprocal of the negative exponential making it Y= L(1+e^a(x-b)). Then multiplying everything by the log, making Y = ln(L) (1+(ln(a))(ln(x-b)). But i don’t know if this is the right step or even what formula to apply to get Probability of a or b.

Statistics and Probability

Question

# Assistance needed. Accuracy is needed in this please. Quality assistance needed

STAT 200 Final Examination Fall 2016OL1/US1 Page 1 of 14 STAT200Introduction to Statistics Name______________________________
Final Examination: Fall 2016 OL1/US1Instructor…
Statistics and Probability

Question

# The award process involve a series of tasks such as completing thedetermination of responsibility, small

action report (CAR), and contract distribution. What other task occurs

during the Award step of the Solicitation-Award phase of an acquisition?

Statistics and Probability

Question

# True or false:1- A utility curve that shows utility increasing at an increasing rate

as the monetary value increases represents the utility curve of a risk seeker

2- A seasonal index must be between -1 and +1

3- Utility theory provides a decision criterion that is superior to the EMV or EOL in that it may allow the decision maker to incorporate her own attitudes toward risk

4- The SSE measures the total variability in the independent variable about the regression line.

5- The Delphi method solicits input from customers or potential customers regarding their future purchasing plans

6- When using the EOL as a decision criterion, the best decision is the alternative with the largest EOL value.

7- Any time that we have an isoprofit line that is parallel to a constraint, we have the possibility of multiple solutions

Statistics and Probability

## 1 CLT True or False? The Central Limit Theorem (CLT) guarantees that the sample mean is normally

Question

Explain why the results were different and why your test was a stronger and more reliable test.

(1) You should start by running the same test he did in which he came to
the decision that he could not conclude a difference.
From the data given, the mean and variances are as follows….
Statistics and Probability

Question

# I need an expert in Business Analysis (Stat) college lvl 300 with these 5 problems and also who can work with me

further later.

There is only one attempt to submit and score this assignment. If I cant get 100% in the first time, payment can not be processed.

I also want to know how long will it take to solve these problems. Thank you !

BUS310 1. A random sample of 25 observations was taken from a normally distributed population. The
average in the sample was 84.6 with a variance of 400.
a. Construct a 90% confidence interval for…
Statistics and Probability

## Can someone answer the following problems below and show work 1

The average

Question

Which of the above two problems (a) or (b) requires application of the Central Limit Theorem? Explain your reasoning.

4. Assume that the mean diastolic blood pressure of normal adults is 80 millimeters of mercury (mm Hg) with a standard deviation of 4.8 mm Hg. Assume that the variable is normally distributed. If a sample of 30 adults is randomly selected, find the probability that the sample mean will be between 80 and 81.4 mm Hg.

Statistics and Probability

Question

# This is about a statistical computing problem. Can some

solve this? Coding in R is preferred.

7) Given a probability distribution F and a point x 6 Rd, at depth Mam D measures . ‘ _ d
how close x is to the center of the distribution and deﬁnes a rank order on pomt-S m R with respect to F. Observations which are far from the center of the data are given low ranks, whereas observations close to the center receive higher ranks. The Mahalano‘ois
depth MD; F) of a vector is with respect to a distribution function F with mean vector
piF and dispersion matrix 2;: is deﬁned to be MD(t; F) = [1 + it — #F)’231(t — tell—1- The sample version is computed by plugging in estimated ftp and \$1.1. 0 5.. Write a program to generate a sample of size n from a bivariate normal distribution
(F) with mean up = (O, 0), unit variances and Correlation 0.5. If you code in R1 see the function mahalanobis(x, center, cov). Let n = 10. Print the observations, their
mean and covariance, and the depth of each data point. Find and print the bivariate median; i.e. the bivariate vector that maximizes the depth function. e b. Generate n = 1000 bivariate observations from F. Plot all observations and identify the lowest 5 percent of the data in red.
Statistics and Probability

Question

# 2. The population of lengths of aluminum-coated steel sheets is normally distributed with a mean

of 30.0 inches and a standard deviation of 0.9 inches. A sample of 36 metal sheets is randomly selected from a batch. What is the probability that the average length of a sheet is between 29.70 and 30.24 inches long?

Economics

Question

# A real estate agent claims that the mean living area of all single-family homes in his country is at least 2400

square feet. A random sample of 50 such homes selected from this country produced the mean living area of 2540 square feet and a standard deviation of 472 square feet.

a. Using a significance level of 5%, can you conclude that the real estate agent’s claim is true? Use a diagram and show the 5-step method.

b. What would be the probability of committing a Type I Error in this case?

Statistics and Probability

Question

# The following 3 questions (Q10 to Q12) are based on the following information:John has the phone numbers of

blonde and others are brunettes. In addition, John knows that some are single while others have

boyfriends. The exact breakdown is as follows:

Blonde Brunette

Single 15 18

Taken 10 12

Find the following probabilities:

Q10: What is the probability of selecting someone who is taken, given that they are blonde?

Q11: What is the probability of selecting a single brunette?

Q12: What is the probability of selecting someone who is brunette, given that they are taken?

Q13: A coin is tossed four times. Which of the following sequences of heads (H) and tails(T) is

more likely?

A. HTHT

B. HHHT

C. THHH

D. TTTT

E. all are equally likely

F. none of the above

Q14: If an event can occur twice out of every 10 times, it has the probability value of

A. 0.10

B. 0.20

C. 0.50

D. none of the above three answers are correct

Q15: Probabilities are expressed with what values?

A. negative infinity to positive infinity

B. 0.00 to positive infinity

C. 0.00 to +1.00

D. -1.00 to +1.00

Statistics and Probability

Question

# 1. A bag contains blue and red balls. Two balls are drawn randomly without replacement. The probability of

selecting a blue and then a red ball is 0.2. The probability of selecting a blue ball in the first draw is 0.5. What is the probability of drawing a red ball, given that the first ball drawn was blue?
a) 0.4
b) 0.2
c) 0.1
d) 0.5

2. A die is rolled thrice. What is the probability that the sum of the rolls is atleast 5.
a) 1/216
b) 1/6
c) 3/216
d) 213/216

Statistics and Probability

## Please i need a faster tutor to give me answers to this

question paper.

Question

# please i need a faster tutor to give me answers to this question paper.

INFERTILITY • • • Infertility is defined as no conception after
1 year of unprotected intercourse (i.e.,
without contraception).
Fecundability, or the monthly probability of
pregnancy, is…
Entrepreneurship

## 4 The Uris &amp

Warren Ratings Agency rates bonds on a simpliﬁed scale with just three categories: A,

Question

# 4. The Uris Warren Ratings Agency rates bonds on a simpliﬁed scale with just three categories: A,

B,

and C.T he Professors Pension Fund has all its money invested in two bonds, X and Y , both of which are

currently rated B. Over the course of the next year the ratings of the bonds may change; the end-of-year

value (in millions) of each bond depends on its end-of-year rating as in the following table:

Rating X Value Y Value

A

100

100

B

75

75

C

50

50

The joint distribution of the end-of-year ratings of the two bonds is given by the following table:

Y

A

B

C

A

0.2

0.05

0

X

B

0

0.4

0.1

C

0

0.05

0.2

(a) Find the probability that bond X will be rated C at the end of one year.

(b) Find the expected value of the year-end value of bond X.

(c) The Pension Fund buys an insurance contract that will pay 20 million if either bond is downgraded

to C.If both bonds are downgraded the contract still pays 20; if neither is downgraded the contract pays

nothing.F ind the expected value of the payoﬀ of the insurance contract.

Statistics and Probability

## Can you assist me with the attached document?

IT consist of probabilities and contingency tables.

Question

# Can you assist me with the attached document? IT consist of probabilities and contingency tables.

MGMT 650 Fall 2016 Problem Set 2
1. Compute these probabilities:
a. The probability of rolling the number 6 using one die. 1/6
b. The probability of rolling the number 6 twice in 2 rolls using only…
Statistics and Probability

Question

# . ABC Toys Inc. is trying to determine whether to make significant aerations to their best selling product line.

ABC has hired a marketing research company to perform focus group analysis in order to get a better idea of the demand for the changes The marketing analysis is expected to show a 65% positive outlook and 35% negative outlook. Once they have the analysis, ABC may either adapt the existing product line or make no changes. Final payoffs will depend on market demand – either high or low. If the market analysis is positive and ABC goes with an adapted product line, high demand is expected with a probability of 0.70 and a payoff of \$4M. Low demand (probability of 0.30) would resu in a payoff of \$2M. However, If no changes are made, high demand is expected with a probability of 0.30 and a payoff of \$4.4M. Low demand would resu in a payoff of \$3.5M. If the market analysis is negative and ABC goes with an adapted product line, high demand is expected with a probability of 0.40 and a payoff of \$4M, low demand would give a payoff of \$3.5M. If no changes are made, high demand is expected to have a probability of 0.80 with a payoff of \$4.4M and low demand would have a payoff of \$2.8.

Draw a decision tree to illustrate this problem Solve the decision tree and make a recommendation to ABC

Marketing

Question

# The compressive strength of samples of cement can be modeled by a normal distribution with a mean of 6000

kilograms per square centimeter and a standard deviation of 100

kilograms per square centimeter. What is the probability that a sample’s strength is between 5800 and 5900 Kg/cm2?

Statistics and Probability

;

Question

# i need help with this homework programs all of them.

Problem 1
a)
Mean = 6.49 hours
Standard deviation = 1.05/sqrt(150) = 0.0857 hours
b)
Probability of coming up with a sample that they studies 6 hours or less = P ( z amp

(6 – 6.49)/0.0857 )
= P(…
Statistics and Probability

Question

# 1. What are non-spherical disturbances? 2. What is panel data? How does it differ from cross-sectional

data?

3. What is time-series data? How does it differ from cross-sectional data?

4. Describe the different types of probability models. Under what conditions are they used?

5. Why must we weight the residuals when analyzing proportions data (with the logit model)?

1 1. What are non-spherical disturbances?
In a standard OLS structure, it is presumed that the imminent variances of errors are always
stable and invariant. In such cases, assuming…
Economics

## Ina sample of 800

U.S. adus, 186 dine out at a restaurant more than once per week. Two U.S. adus are selected

Question

# Ina sample of 800 U.S. adus, 186 dine out at a restaurant more than once per week. Two U.S. adus are selected

at random from population of all U.S. adus without replacement. Assuming the sample is representative of all U.S. adus, complete parts (a) through (d). a. find the probability that both dine out more than once a week b. find the probability that both dine out more than once per week c. find the probability that at least one of the two dines out more than once per week d. which of the events can be considered unusual

Statistics and Probability

Question

# If there is a 1/2 probability of having a green seed and a 1/4 probability of having a round seed, then what is

the probability that the progeny will have both green and round seeds?

Science

## S A T Company is ready to launch a new product domestically

Historically, the companies products have been

Question

# S.A.T. Company is ready to launch a new product domestically. Historically, the companies products have been

successful domestically 93% of the time. This new product has been sold overseas for the past 6 months as this has been the traditional market strategy (test a product overseas before bringing it to the domestic market). Historically, products which are successful domestically were successful in the international market 86% of the time. Conversely, products which fail domestically had already failed internationally 92% of the time.

Determine the probability that this new product will be successful domestically if the product has been successful overseas. Indicate your answer to four decimal places (i.e. 0.0001).

Statistics and Probability

Question

2,791

First convert the table into a probability distribution by dividing each number in the Claims column by the total number of claims. Take probability calculations to 3 decimal places.

Now, let X be the expected payout. Find E(X), the expected value of X, to two decimal places.

Question

# Question 4(a) Managers are not always working all the benefits of shareholders.Explain what agency

problem is in real world. (6 marks)

(b) Stock exchanges are the backbone of the capital market.

Why would a finance manager of a large public listed company issue?

commercial paper in money market to finance some projects?

(3 marks)

(c) Recently, a financial analyst of New York Stock Exchange came up with the

hypothetical analysis as follows:

Return from Exchange: 9%

Probability: 0.1 (Most likely)

Return from Exchange: 10%

Probability: 0.2 (likely)

Return from Exchange: 11%

Probability: 0.4 (Neutral)

Return from Exchange: 12%

Probability: 0.2 (unlikely)

Return from Exchange: 13%

Probability: 0.1 (most unlikely)

Required:

(i) What is the expected return that could be gained from New York Stock

Exchange? (3 marks)

(ii) What is the variance for the return? (4 marks)

(iii) What is the standard deviation of the return? (4 marks

Finance

Question

# Due to budget cuts a manager was told to cut a single person out of his work crew of 4 workers-Dave, Joe, Mike,

and Roger. He decided to make the cut in as fair of way as possible since all are equally qualified. He put each of their names on a card, mixed the cards, and drew a random name. The manager’s best friend is Dave and Dave stated that at least his odds of losing his job are only one out of four-it could be worse, Dave stated. Then Dave asked, At least two of the others-Joe, Mike, and Roger will retain their job; could you tell me randomly the names of the two that will keep their jobs? The manager decided to tell Dave which of the others would keep their jobs, the manager stated, Mike and Roger will keep their jobs…..Dave’s concern set in, he said it seems as if my chances of being terminated just went from ¼ to ½……..

Is John right in thinking that the probability changed from ¼ to ½? Explain/prove your answer with a decision tree only…..

Due to budget cuts a manager was told to cut a single person out of his work crew of 4
workers-Dave, Joe, Mike, and Roger. He decided to make the cut in as fair of way as possible
since all are…
Statistics and Probability

Question

# What is the probability a soccer game will have a total score of 8 points when the average per game out of 5 is 4

points?

CHE101 – Laboratory Report
Name:
Date:
Title:
Titration of Weak Acids and Bases
Purpose:
The importance of this experiment is to enable the student properly understand titration, and
more…
Statistics and Probability

Question

# A package contains 12 resistors, 3 of which are defective. If 4 are selected, find the probability of getting a) 0

defective resistor

(b) 1 defective resistor

(c) 3 defective resistors

Statistics and Probability

## You have a deck of 52 cards divided into 4 suits (spades hearts diamonds &amp

clubs) each suit consists of 13

Question

# You have a deck of 52 cards, divided into 4 suits (spades, hearts, diamonds clubs) each suit consists of 13

cards of different ranks, the spades clubs are black colored while hearts diamonds are red colored.

You are asked to draw 4 cards without replacement, find the probability of the below

Statistics and Probability

Question

# 64% of men consider themselves professional baseball fans. You randomly select 10 men and ask each if he considers

himself a professional baseball fan. Find the probability that the number who considers themselves baseball fans is (a) exactly eight (b)at least eight and (c) less than eight. If possible use technology to find the probabilities.

n r
10
10
10
10
10
10
10
10
10
10
10 n-r
0
1
2
3
4
5
6
7
8
9
10 nCr
10
9
8
7
6
5
4
3
2
1
0 1
10
45
120
210
252
210
120
45
10
1 P
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64 Q
Probability…
Statistics and Probability

Question

# Question 3: A simple computer consists of a processor, a bus and a memory. The computer will work only if all

three are functioning correctly. The probability that the processor is functioning is 0.99, that the bus is functioning 0.95, and that the memory is functioning is 0.99. Find the probability that the computer will work. Compare the reliability of the three components and the system and provide your insights.

The probability that the computer will work = PP* PB* PM
Where
PP is the probability of processor = 0.99
PB is the probability of bus = 0.95
PM is the probability of memory = 0.99
So,…
Mechanical Engineering

## An individual with cash to invest has two investment choices

Buy a stock fund that every year

Question

# An individual with cash to invest has two investment choices:Buy a stock fund that every year

either earns 40% or -20% with a 50/50 probability.

Buy a bond fund that every year returns either 5% or 0% also with a 50/50 probability.

Assume that the returns on the two funds are independent, and that returns from year to year are also independent. Also assume an initial portfolio value of \$1. (The answers, however, will be unaffected if you use a different initial portfolio value.)

In addition, suppose the value function is linear and is specified as:

v(z) = z for z 0

v(z) = 3z for z 0

a. Which fund does the investor prefer if he looks at his portfolio i) once a year; or ii) once every two years?

A
B
C
D
E
F
G
1
a
Q NJ
Option-1
Option-2
quot;Stockquot;
‘Bondquot;
Return per
Net Return
Net Return
year
Probability
Return per year
Probability
40%
0.5
20%%
5%
0.5
2.50%
20%
0.5
10%
0.5
0.00%…
Finance

Question

# A recent survey in the town of Mountainview showed that 86% of the population has some form of heah insurance.

Furthermore, the survey showed that 21% of the people who have heah insurance also has some form of life insurance. If an adu resident of Mountainview is randomly selected; find the probability that the individual has both heah and life insurance.

Statistics and Probability

Question

# Which of the following is the best definition of qualitative research?Research conducted in a

natural setting that seeks to understand a complex human behavior by developing a complete narrative description of that behavior

Procedures used to analyze data after an experiment is completed in order to determine whether the independent variable has a significant effect

Research that centers on the probability that a statistical test will be significant

An experimental procedure in which research participants are tested or measured more than one

Statistics and Probability