You obtained a significant test statistic when comparing three treatments in a one-way ANOVA. In words, how would you interpret the alternative hypothesis HA?

A At least two treatments are different from each other in terms of their effect on the mean response

B Exactly two of the three treatments have the same effect on the mean response

C All three treatments have different effects on the mean response

D None of the above

Answer & Explanation
Answer: At least two treatments are different from each other in terms of their effect on the mean response

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