Question: State the decision rule that would be used to test the following hypotheses. Evaluate the appropriate test statistic and state your conclusion. (a) H 0

State the decision rule that would be used to test the following hypotheses. Evaluate the appropriate test statistic and state your conclusion.

(a) H0: μ = 120 versus H1: μ < 120; y̅ = 114.2, n = 25, σ = 18, α = 0.08

(b) H0: μ = 42.9 versus H1: μ ≠ 42.9; y̅ = 45.1, n = 16, σ = 3.2, α = 0.01

(c) H0: μ = 14.2 versus H1: μ > 14.2; y̅ = 15.8, n = 9, σ = 4.1, α = 0.13

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