When computing Tukey simultaneous confidence intervals for all possible pairwise comparisons of the treatment group means,the experimentwise error rate will be
A)equal to $\alpha$ .
B)less than $\alpha$ .
C)greater than $\alpha$ .

Question

Quizplus · Accepted Answer

The experimentwise error rate when computing Tukey simultaneous confidence intervals for all possible pairwise comparisons of treatment group means is designed to be equal to $\alpha$. This is because the Tukey method controls the familywise error rate to ensure that the probability of making at least one Type I error across all comparisons does not exceed $\alpha$.

When Computing Tukey Simultaneous Confidence Intervals for All Possible Pairwise α\alphaα

When Computing Tukey Simultaneous Confidence Intervals for All Possible Pairwise $\alpha$