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A group of 20 sales associates agree to go through a week-long sales class to improve their productivity. The amount of their sales is computed for one month before and one month after the training course. Run the paired t-test to find out if:
Is there evidence to suggest that the training course helps out sales people?
Should we send the rest of our sales associates to the course?
Sales #
Before
After
1
$ 33,766.65
$ 37,483.57
2
$ 52,827.74
$ 37,871.17
3
$ 26,654.23
$ 22,036.40
4
$ 21,758.96
$ 28,712.85
5
$ 42,708.70
$ 33,083.67
6
$ 38,123.38
$ 25,527.58
7
$ 18,064.69
$ 25,912.90
8
$ 21,891.92
$ 25,658.53
9
$ 44,578.95
$ 33,012.29
10
$ 38,907.00
$ 51,140.65
11
$ 34,452.24
$ 26,601.97
12
$ 40,607.04
$ 41,688.33
13
$ 10,049.96
$ 48,257.45
14
$ 4,678.23
$ 5,017.87
15
$ 26,160.92
$ 24,297.28
16
$ 27,392.57
$ 39,360.24
17
$ 44,098.47
$ 57,434.46
18
$ 65,263.37
$ 52,551.86
19
$ 29,605.20
$ 24,895.86
20
$ 5,133.71
$ 10,617.06
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