Listed below are times (in minutes and seconds) that a statistics instructor recorded while riding a bicycle for five laps through each mile of a 3-mile loop. Determine the null and alternative hypotheses.

Mile 1 3:18 3:13 3:15 3:18 3:20

Mile 2 3:29 3:31 3:27 3:16 3:28

Mile 3 3:24 3:29 3:27 3:24 3:21

A.H0: The samples come from populations with means that are not all equal.

H1: The samples come from populations with equal means.

B.H0: The samples come from populations with equal medians.

H1: The samples come from populations with medians that are not all equal.

C.H0: The samples come from populations with medians that are not all equal.

H1: The samples come from populations with equal medians.

D.H0: The samples come from populations with equal means.

H1: The samples come from populations with means that are not all equal.