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Question
Samples were selected from three populations. The data obtained are shown below.| Sample 1 | Sample 2 | Sample 3 | |
| 10 | 16 | 15 | |
| 9 | 14 | 15 | |
| 12 | 13 | 16 | |
| 13 | 14 | 14 | |
| 16 | 10 | ||
| 17 | |||
Sample Mean ( ) | 11 | 15 | 14 |
Sample Variance ( ) | 3.33 | 2.4 | 5.5 |
a. Compute the overall sample mean
.b. Set up an ANOVA table for this problem.
c. At 95% confidence test to determine whether there is a significant difference in the means of the three populations.
Answer
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