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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

Statistics and Probability, Statistics

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