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Question
Exhibit 10-2The following information was obtained from matched samples.
The daily production rates for a sample of workers before and after a training program are shown below.
| Worker | Before | After |
| 1 | 20 | 22 |
| 2 | 25 | 23 |
| 3 | 27 | 27 |
| 4 | 23 | 20 |
| 5 | 22 | 25 |
| 6 | 20 | 19 |
| 7 | 17 | 18 |
a. -1
b. -2
c. 0
d. 1
Answer
This answer is hidden. It contains 1 characters.
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