14. Which of the following is/are NOT correct about ANOVA?
(A) One assumption of ANOVA is that allsamples are drawn independently；
(B) One assumption of ANOVA is that the variances of thepopulations are equal；
(C) Suppose four groups are compared, the null hypothesis is μ1 = μ2= μ3 = μ4, while the alternative hypothesis is μ1# μ2# μ3 # μ4；
(D) One-way ANOVA is a one-tailed test,while two-way ANOVA is a two-tailed test；
(E) If the test result is not to reject the null hypothesis, wemust perform a post-hoc test to confirm that these groups are truly no different from each other.