i sixsigma
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The table available below shows three samples obtained independently from three populations.
a. Conduct a one-way analysis of variance on the data. Use a= 0.05.
b. If warranted, use the Tukey-Kramer procedure to determine which populations have different means. Use an experiment-wide error rate of 0.05.
| Item | Group1 | Group 2 | Group 3 |
| 1 | 13 | 18 | 17 |
| 2 | 11 | 19 | 14 |
| 3 | 13 | 19 | 15 |
| 4 | 12 | 19 | 17 |
| 5 | 14 | 17 | 15 |
To conduct the analysis,
i) State the decision rule.
ii) Determine the value of the test statistic
iii) Determine the value of the p-value
iv) And determine the decision reached from the analysis of the data.