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Question
Consider a two-way analysis of variance experiment with treatment factors A and B. The results are summarized below.Source of Variation df SS
Factor A 4 86
Factor B 5 75
Interaction 20 75
Error 90 300
Total 119 536
If the mean response for level 1 of Factor A is 31.5 and the mean response for level 2 of Factor A is 22.5, calculate a Tukey simultaneous 95 percent confidence interval for this difference.
Answer
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