What are some of the criteria used in the selection of a particular hypothesis-testing procedure? 10.52 Under what conditions should you use the pooledvariance t test to examine possible differences in the means of two independent populations? 10.53 Under what conditions should you use the F test to examine possible differences in the variances of two independent populations? 10.54 What is the distinction between two independent populations and two related populations? 10.55 What is the distinction between repeated measurements and matched items?