Random samples of employees from three different departments of MNM Corporation showed the following yearly incomes (in $1000).
Department A
Department B
Department C
40
46
46
37
41
40
43
43
41
41
33
48
35
41
39
38
42
44
?
At ? = .05, test to determine if there is a significant difference among the average incomes of the employees from the three departments. Use both the critical and p-value approaches.
What will be an ideal response?
| ANOVA | ||||||
| Source of Variation | SS | df | MS | F | p-value | F critical |
| Between Groups | 48 | 2 | 24 | 1.8 | 0.199 | 3.68 |
| Within Groups | 200 | 15 | 13.33 | |||
| Total | 248 | 17 |
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