A professor teaches two sections of an introductory statistics course. He gives each section the same final and wonders if any significant differences exist between the medians of these sections. He randomly draws a sample of seven scores from Section A and six scores from Section B.

a. Set up the hypotheses to test the claim that the median test score in Section A differs from the median test score in Section B.
b. With α = 0.05, what is the decision rule?
c. Calculate the value of the test statistic W.
d. Do the median test scores differ? Explain.

Section A Section B 75 62 8793 74 7765 64 95 72 78 85 80