A particular personal trainer works primarily with track and field athletes.She believes that her clients run faster after going through her program for six weeks.How might she test that claim? A)A hypothesis test for . B)A hypothesis test for . C)A matched pairs hypothesis test for μ_D. D)We are unable to conduct a hypothesis test since the samples would not be independent.

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Quizplus · Accepted Answer

The best way to test the trainer's claim is by conducting a matched pairs hypothesis test for the difference in running speed before and after the program. This will account for any individual differences and control for extraneous variables. A and B are not specific enough and do not address the need for a comparison of before and after the program. D is not applicable since a matched pairs test accounts for the lack of independence between the samples.

A Particular Personal Trainer Works Primarily with Track and Field