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Hypothesis testing for dependent samples using Paired t test.

A group of 20 sales associates agree to go during 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 propose that the training course helps out sales people?

Must 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

 

 

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920088

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