Consider the following hypothesis test. H0: u = 20 Ha: u does not = 20 A sample of 200 items wiill be taken and the population standard deviation is 10. Use a= .05. Compute the probability of making a Type II error if the population mean is: a. u = 18.0 b. u = 22.5 c. u = 21.0 Solution b. u = 22.5.