Question

You have conducted pre- and post-test measures of the effectiveness of pay raises on employee productivity, measured as net $ sales for the month. Calculate the mean differences between the two time periods (as an absolute value) for the following 5 cases, with pre and post separated by a semi-colon:

Employee 1: 10000; 14000

Employee 2: 12000; 11000

Employee 3: 11000, 13000

Employee 4: 8000; 10000

Employee 5: 9000; 12000

Answer 1

Ans:

Employee	Pre	Post	difference
1	10000	14000	4000
2	12000	11000	-1000
3	11000	13000	2000
4	8000	10000	2000
5	9000	12000	3000
		Total	10000
		mean difference	2000

Mean difference=10000/5=2000