Here Are Three Screenshots Could You Please Answer Questions 19 And 20 (All Parts) And Please Show Me Your Work

Answer So the equation of the regression line is y=.983+1.429x
b) Predicted value when x=3.Substitute the value of x=3,we get
y=.983+1.429*3 =5.27(answer) a)Test statistic
Variance of the first…Statistics and Probability