Do students who are members of fraternities or sororities have GPAS alfferent from the student body as a whole? The mean GPA for the student body as a whole is 2.59 and the mean for a random sample of 123 fraternity and sorority members is 2.47 with a standard deviation of .34. Is the difference statistically significant with 95% confidence? Use the five-step model. Be sure to state all important decisions. Write a sentence or two interpreting your final results.

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