Ap Exam MC Practice

• There are more people between the first and third quartiles for women than there are between the first and

  third quartiles for men.

• The person with the lowest pulse rate is a woman.

• At least half of the women had higher pulse rates than three-fourths of the men.

• More than half of the men had lower pulse rates than three-fourths of the women.

• If a man and a woman were randomly selected from the 40 people, the man would have the lower pulse rate.

An airline claims that the mean flight time between City X and City Y is 38 minutes. After taking many flights,

a local business group believes that the claim is unrealistic and that the actual mean flight time is greater than

38 minutes. If the group conducts a study to investigate its belief, which of the following hypotheses should be

tested?

• A

• B

• C

• D

• E

Ali surveyed 200 students at a school and recorded the eye color and the gender of each student. Of the 80 male

students who were surveyed, 60 had brown eyes. If eye color and gender are independent, how many female

students surveyed would be expected to have brown eyes?

• 5

• 20

• 30

• 90

• 100

A national health study reported that the proportion of students with elevated blood pressure is 0.15. The

principal of a local high school believes that the proportion of students in the school with elevated blood pressure

is greater than 0.15. If a large random sample is used, which of the following is the most appropriate test to

investigate the principal’s belief?

• A z-test for a proportion

• A z-test for a difference between two proportions

• A chi-square test for homogeneity of proportions

• A t test for mean

• A matched pairs t test

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E