Question: (a) Use the data given to test the following hypotheses. H 0 : = 18; H a : 18 x = 16.7;

(a) Use the data given to test the following hypotheses.
H0: μ = 18; Ha: μ ≠ 18
x̅ = 16.7; n = 31; σ = 4.2; α = 0.05

(b) Use the p-value to reach a statistical conclusion.

(c) Using the critical value method, what are the critical sample mean values?

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