Chapter 14.1, Problem 27E

Applying What You’ve Learned.

Comparing training programs. Mary Kay gives sales training to its newly hired employees. To determine how effective the training is, the firm compared the monthly sales a group that has completed the training with a group that has not. The following numbers indicate thousands of dollars of sales last month. Represent the two sets of data on a single stem-and-lead display. Does the orientation program seem to be succeeding?

No Training:	19, 22, 34, 23, 27, 43, 42, 28, 32, 29, 41, 26, 28, 26, 43, 40
With Training:	29, 21, 39, 44, 41, 36, 37, 29, 43, 45, 28, 32, 28, 33, 36, 32