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8. Look at the data in the table below, which describes the average amount of time it takes a group of people to run 5 kilometers-before and after completing a fitness challenge. Perform a hypothesis test to determine if the participants' level of fitness significantly improves (i.e., does their time significantly go down). If appropriate, be sure to mention the size of effect that the program exerts. (25 Points) Participant Pre-Training Post-Training A 42 39 B 54 46 C 55 48 D 45 40 E 39 36 F 35 34 G 37 35 H 30 31 I 43 40 J 35 38

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