The following table shows the monthly sales (in units) of six salespersons before and after a bonus plan was introduced. Using ? = .05, determine whether the bonus plan has increased sales significantly. Assume the population of differences is normally distributed. (For the following matched samples, let the difference d = After - Before.)
Monthly Sales
Salesperson
After
Before
1
94
90
2
82
84
3
90
84
4
76
70
5
79
80
6
85
80
What will be an ideal response?
?
| H0: ?d? 0 |
| Ha: ?d> 0 |
| t = 2.054; p-value is between .025 and .05; reject H0; the bonus plan has increased sales significantly. |
Business
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