Question
For the study described below, identify the sample.
A researcher is interested in the level of
stress among emergency-room nurses in the U.S. 275 emergency-room nurses were interviewed to determine their level of stress. Each nurse was assigned a stress rating based on his or her answers to a number of questions. The average stress rating for the 275 nurses was determined
A) All emergency-room nurses in the U.S.
B) The questionnaire given to the 275 emergency-room nurses interviewed
C) The average stress rating for the 275 emergency-room nurses interviewed
D) The 275 emergency-room nurses interviewed
Math