Qusetion: An instructor believes that students do not retain as much information from a lecture on a Friday compared to a lecture on a Monday. To test this belief, the instructor teaches a small sample of college students preselected material from a single topic on statistics on a Friday and on a Monday. All students receive a test on the material. The differences in exam scores for material taught on Friday minus Monday are listed in the following table
Difference Scores(Friday-Monday)
+3.4
-1.6
+4.4
+6.3
+1.0