I) Greater the sample size, decreases both the type I error as well as type II error. Therefore we would have a larger type II error for a smaller sample size for N = 25 here.
II) There is a trade off between the type I error and the type II error. Therefore greater the type I error, smaller would be the type II error, while smaller the type I error, greater would be the type II error. Therefore 0.01 level of significance will have a greater Type II error here.
Therefore N = 25 and 0.01 level of significance is the correct answer here.
The average height (u) of a population of fifth-graders is u = 60 inches, and the...
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