Random samples were selected from three populations. The data obtained are shown below. Please note that the sample sizes are not equal.
Treatment 1
Treatment 2
Treatment 3
45
31
39
41
34
35
37
35
40
40
40
42
?
a.Compute the overall mean 
.b.Using ? = .01, test to see if there is a significant difference among the treatment means.
What will be an ideal response?
a. 38.25
b.
| Source of Variation | SS | df | MS | F | p-value | F critical |
| Between Groups | 80.25 | 2 | 40.125 | 4.0125 | 0.0568 | 8.02 |
| Within Groups | 90 | 9 | 10 | |||
| Total | 170.25 | 11 |
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