Question: Using the computer output perform pairwise comparisons of the treatment
Using the computer output, perform pairwise comparisons of the treatment means in Exercise 11.8 by (1) Using Tukey simultaneous 95 percent confidence intervals (2) Optionally using t statistics and critical values ( see the right side of Figure 11.6 and page 416). Which brands are most durable? Find and interpret a 95 percent confidence interval for each of the treatment means.
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