Advanced Placement (AP), 03.06.2021 21:10 jocelynfray16

A biologist hypothesizes that the mean life expectancy of a cockroach is 17 days. Researchers believe the true mean is less than 17 days and they plan a hypothesis test at the 10% significance level on a random sample of 80 of these cockroaches. If the alternative hypothesis is correct, for which of the following values of μ is the power of the test greatest? μ = 9
μ = 10
μ = 17
μ = 20
μ = 21

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A biologist hypothesizes that the mean life expectancy of a cockroach is 17 days. Researchers believ...