APFIVE Probability Of A Type II Error
A researcher conducts a hypothesis test with H₀: μ = 75 against Hₐ: μ > 75. If the rejection region is X̄ > 78.2 and the true population mean is 80 with σ = 12, what is the probability of a Type II error (β) for a sample size of 36?
A
0.8849
B
0.0228
C
0.9772
D
0.1841
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