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 stated as H0: μ1 = μ2 = μ3 suggests that there is no difference in the mean wear (μ) on the sole of the shoes among the three brands, which is a correct formulation for testing differences among means of more than two groups.

Three Brands of Running Shoes Are Each Tested by 10