In: Statistics and Probability
The average American sees 15 movies per year. Jimmy believes that college students are different from the average American regarding movies. He gets a sample of four college students and asks them how many movies they see per year. They answer 2, 14, 2, 10. Do a t-test to see if Jimmy’s belief is true. Please calculate the t-statistic for this data. State the critical value, and come to a conclusion about Jimmy’s belief. Let α = .05. Make it a two-tailed test. Assume that it is okay to do a t-test.
Mean = (2+14+2+10)/4 = 28/4 = 7
At 0.05 significance level, there is not enough evidence to conclude that college students are different from the average American regarding movies.