4. (15\%) Suppose you are conducting a statistical test H0:μ=5 against Ha:μ>5 when the sample variance S2=3 is obtaine
Posted: Thu Jul 14, 2022 4:48 pm
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\%)