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A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to...

A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to perform the required hypothesis test about the mean, μ, of the population from which the sample was drawn. Use the critical-value approach. Show all work carefully on paper, include a graph, and fill in the blanks below.

x-bar = 21, s = 7.4, n = 11, H0: μ = 18.7, Ha: μ ≠ 18.7, α = 0.05

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