A national insurance company wishes to compare the effectiveness of two established sales-training methods (i.e., Method A and Method B). Assume that you have been given the task of designing the study that will help the company determine whether or not one method is superior to the other. A level of statistical significance of five-percent is selected. The random variable of interest is sales in dollars per quarter. It is possible to conduct the study as either a paired-t test, or a t test for two independent populations, however, it really only makes sense to use one of these methods. Review the assumptions underlying each test (refer to both sections 10.1 and 10.2) and determine which method is appropriate for this particular research scenario. In addition, describe why the method you chose not to select is inappropriate.