Let the sample size of leg strengths be 7 and the sample mean and sample standard deviation be 1260 watts and 64 watts, respectively. (a) Is there evidence that leg strength exceeds 1200 watts at significance level 0.05? Find the P-value. There is ✓evidence that

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Let the sample size of leg strengths be 7
and the sample mean and sample standard
deviation be 1260 watts and 64 watts,
respectively.
(a) Is there evidence that leg strength
exceeds 1200 watts at significance level
0.05? Find the P-value.
There is
✓evidence that
the leg strength exceeds 1200 watts at
α = 0.05.
✓< P-value <
(b) Compute the power of the test if the
true strength is 1220 watts.
Round your answer to four decimal places
(e.g. 98.7654)
d =
i
Transcribed Image Text:Let the sample size of leg strengths be 7 and the sample mean and sample standard deviation be 1260 watts and 64 watts, respectively. (a) Is there evidence that leg strength exceeds 1200 watts at significance level 0.05? Find the P-value. There is ✓evidence that the leg strength exceeds 1200 watts at α = 0.05. ✓< P-value < (b) Compute the power of the test if the true strength is 1220 watts. Round your answer to four decimal places (e.g. 98.7654) d = i
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