Three brands of running shoes are each tested by 10 different runners.The amount of wear on the sole of the shoes is then measured.The objective is to determine if there is any difference among the three brands of shoes based on how long the soles last.The null hypothesis is:
H₀ : μ₁ = μ₂ = μ₃.

Question

Quizplus · Accepted Answer

The null hypothesis states that there is no difference in mean sole wear among the three brands of shoes. This is correctly stated as μ₁ = μ₂ = μ₃. Therefore, the answer is A.

Three Brands of Running Shoes Are Each Tested by 10