To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments. You are given the results below. The null hypothesis for this ANOVA problem is A) μ₁ = μ₂. B) μ₁ = μ₂ = μ₃. C) μ₁ = μ₂ = μ₃ = μ₄. D) μ₁ = μ₂ = ... = μ₁₂.

Question

Quizplus · Accepted Answer

The null hypothesis for ANOVA is that there is no difference in means among the treatment groups. In this case, there are three treatment groups (A, B, and C), so the null hypothesis should state that the means of all three groups are equal. Thus, the correct null hypothesis is option B, which states that the means of all three treatments are equal.

To Test Whether or Not There Is a Difference Between