Which of the following statements about Scheffe test is incorrect?

Which of the following statements about Scheffe test is incorrect? 









A. It is a kind of a follow-up (or post hoc) test.

B. It is a rather conservative test.

C. It is equivalent to simultaneous two-tailed hypothesis tests.

D. The confidence intervals tend to be narrower in this method than in other methods.

E. The method holds the experimental error rate to a.







Answer: D


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