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4. (15\%) Suppose you are conducting a statistical test H0:μ=5 against Ha:μ>5 when the sample variance S2=3 is obtaine
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4. (15\%) Suppose you are conducting a statistical test H0:μ=5 against Ha:μ>5 when the sample variance S2=3 is obtaine
4. (15\%) Suppose you are conducting a statistical test H0:μ=5 against Ha:μ>5 when the sample variance S2=3 is obtained. The decision rule is "reject H0 if the sample mean of a random sample of 6 items is more than 8". (a) Find the probability of making a type I error. (5\%) (b) Find the probability of making a type II error when μ=6. (5\%) (c) Find the decision power when μ=7. (5\%)
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