Question: Under what circumstances are posttests necessary? a. reject the null hypothesis with k = 2 treatments. b. reject the null hypothesis with k > 2

Under what circumstances are posttests necessary?

a. reject the null hypothesis with k = 2 treatments.

b. reject the null hypothesis with k > 2 treatments.

c. fail to reject the null hypothesis with k = 2 treatments.

d. fail to reject the null hypothesis with k > 2 treatments.

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