In general,a Tukey simultaneous 100(1 - α)percent confidence interval is _________ than the corresponding individual 100(1 - α)percent confidence interval.
A)Wider
B)Narrower
C)No different
D)Two times more

Question

Quizplus · Accepted Answer

Tukey intervals are designed to control for the familywise error rate in multiple comparisons, and as a result, they tend to be wider than individual confidence intervals. This is because they are adjusted for the fact that multiple tests are being conducted simultaneously. Therefore, the correct answer is A, wider.

In General,a Tukey Simultaneous 100(1 - α)Percent Confidence Interval Is