Which of the Following Statements About the Scheffé Test Is

Multiple Choice

Which of the following statements about the Scheffé test is correct?

A) If the difference between each pair of means falls inside the range of the confidence interval, then the null hypothesis is rejected.
B) If the difference between each pair of means falls outside the range of the confidence interval, it can be concluded that the pairs of means are statistically similar.
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 test identifies differences between all pairs of means at high confidence interval ranges but not at low confidence interval ranges.