Do Students Who Are Members of Fraternities or Sororities Have

Do students who are members of fraternities or sororities have GPAs different from the student body as a whole? A random sample of 123 "Greeks" has been selected from the student body of a large university.The GPA for the student body as a whole is 2.59 and the mean for the sample is 2.47 with a standard deviation of 0.34.Is the difference statistically significant? Follow the five-step model and state all important decisions.Make sure that you interpret the results in terms of the original research question.