Question: For each of the following situations, indicate which statistical test (s) you would use:

a. You want to know if patients lose weight during radiation therapy, so you conduct a study in which you weigh each patient before and after radiation therapy.

b. You want to know if women marry men who earn more than they do, so you select you 100 working couples and obtain salaries for both spouses.

c. You want to know whether men and women are equally likely to like opera.

d. You want to know whether Eskimos, Alaskans, and Canadians have the same average rate.

e. You want to know if there is a difference in high school GPA for students who complete college and those who enroll but do not complete it.

f. You want to know if four treatments for curing acne are equally effective. Each of 50 adolescents receives one of the treatments for four months and is then classified as improved, same or worsened.

g. You want to know whether men and women in four regions of the country have the same average cholesterol levels.

h. You want to know if the average IQ of schizophrenics is 100.