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Question
The following data present the number of computer units sold per day by a sample of 6 salespersons before and after a bonus plan was implemented. Let d = before " after.| Salesperson | Before | After |
| 1 | 3 | 6 |
| 2 | 7 | 5 |
| 3 | 6 | 6 |
| 4 | 8 | 7 |
| 5 | 7 | 8 |
| 6 | 9 | 8 |
At 95% confidence, test to see if the bonus plan was effective. That is, did the bonus plan actually increasesales?
Answer
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