Solutions Statistics

Jerry’s Bargain Department Store spent $50,000 on a training program to improve sales effectiveness

Question: Jerry’s Bargain Department Store spent $50,000 on a training program to improve sales effectiveness of its employees. Below is a table of the before and after sales amounts for

a random sample of employees who took the training program. Assume that data is recorded for an equal period of “before”-“after” time. Use the 1% level for risk. Process the data by Excel.

Person	Before Training	After Training	Person	Before Training	After Training
CJ	$38,747	$40,838	JZ	$49,090	$53,700
TM	$42,505	$48,555	HB	$45,650	$49,799
JJ	$35,464	$36702	TA	$53,250	$55,404
DN	$51,010	$52,910	ZK	$60,990	$61,858
EW	$48,575	$60,999	PL	$58,344	$59,995
CH	$32,377	$38,358	LD	$44,012	$54,038