High school juniors planning to attend college were randomly assigned to view one of four videos about a particular college, each differing according to what aspect of college life was emphasized: athletics, social life, scholarship, or artistic/cultural opportunities. After viewing the videos, the students took a test measuring their desire to attend this college. The results were as follows:

Desire to Attend this College:

Athletics       Social Life    Scholarship     Art/Cultural
68                    89                  74                 76
56                    78                  82                 71
69                    81                  79                 69
70                    77                  80                 65

Do these results suggest that the type of activity emphasized in a college film affects desire to attend that college? (Use the .01 significance level.)

a. Use the five steps of hypothesis testing.

b. Sketch the distribution involved.

c. Figure the effect size of the study.

d. Explain the logic of what you have done to a person who is unfamiliar with the analysis of variance.