Returning to Problem 11.35, if the difference is defined as superhero violent events per hour minus villain violent events per hour, use the Minitab output below to answer the following questions at 1% significance.

a) What was the average difference in violent events per hour?
b) If we are testing if their is a difference in mean violent events per hour, is the null rejected?
c) Interpret the confidence interval.

Problem 11.35

Who is more violent, superheroes or villains? A CNN article reported on a research presentation on the matter. The research considered (a random sample) of 10 movies and evaluated the number of violent acts committed by superheroes and villains in each movie. Which type of analysis makes most sense: an independent two sample t-test or a paired t-test? Why?

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Paired T-Test and Cl N Difference 10 5.200 3.000 Mean StDev SE Mean 0.949 99% CI for mean difference: (2.117, 8.283) T-Test of mean difference = 0 (vs # 0): T-Value = 5.48 p-Value = 0.000