In the Consolidated Power hypothesis test of H0: 60 versus Ha: > 60 (

Question:

In the Consolidated Power hypothesis test of H0: μ ≤ 60 versus Ha: μ > 60 ( as discussed in Exercise 9.45) find the sample size needed to make the probability of a Type I error equal to .025 and the probability of a Type II error corresponding to the alternative value μ0 = 60.5 equal to .025. Here, assume s equals 2.