10 STATISTICAL ANALYSIS (III) In a study dealing with the relationship between exposure to different film materials and comforting behavior, a sample of 44 college students was selected and randomly assigned to one of the three film conditions: comedy, tragedy, and horror. After viewing a 30-minute film, each subject's comforting behavior in an interaction with a distressed confederate was observed by the experimenter through a two-way mirror. The subject's comforting behavior was rated on a nine- point scale (9 being most sensitive and 1 being least sensitive). The raw scores of the subjects in each condition were reported as follows: Comedy Horror Tragedy 5 9 5 9 2 3 7 4 8 8 3 9 8 3 2 9 6 3 1 4 6 9 8 4 8 2 6 6 1 1 8 2 9 9 4 2 7 5 3 8 2 9 3 5 N = 15 N = 15 N = 14 Based on the data provided, complete the following: 1. Calculate a t-test on the mean scores in each pair of film conditions. For each test: (a) state the degrees of freedom and critical value for each test, and (b) state whether or not the difference is significant. You must show all your work in order to receive full credit. a. Comedy and horror b. Horror and tragedy 28 c. Comedy and tragedy