The manager of a company believes that differences in sales performance depends upon the salesperson's age. Independent samples of salespeople were taken and their weekly sales record (in units) is reported below.
SalesBelow 30 Years
Between 30 and 45 Years
Over 45 Years
22
23
30
18
17
20
21
22
23
15
25
25
19
18
33
26
29
36
28
28
?
a.State the null and alternative hypotheses to test whether or not there are differences in the populations of sales.b.At ? = .05, test the hypotheses.
What will be an ideal response?
?
| a. | H0: All three populations are identical Ha: Not all populations are identical |
| b. | H=6.01; p-value < .05; reject H0; conclude that there is a difference among the populations. |
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