Consider the following hypothesis test.
H0: µ = 20
Ha: µ ? 20
A sample of 200 items will be taken and the population standard deviation is s = 10. Use a = .05. Compute the probability of making a Type II error using the population means shown below (to 4 decimals).
µ = 18.0
µ = 22.5
µ = 21.0