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Question
Random samples were selected from three populations. The data obtained are shown below.| Treatment 1 | Treatment 2 | Treatment 3 |
| 45 | 31 | 39 |
| 41 | 34 | 37 |
| 37 | 35 | 38 |
| 40 | 40 | |
| 42 |
a. Compute the overall sample mean
.b. At 90% confidence, test to see if there is a significant difference in the means of the three populations. Show the complete ANOVA table. Please note that the sample sizes are not equal.
Answer
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