A manufacturer of automobile transmissions uses three different processes.Management ordered a study of the production costs to see if there is a difference among the three processes.A summary of the findings is shown below. What is the decision? A)Reject H₀ - there is a difference in treatment means B)Fail to reject H₀ - there is a difference in treatment means C)Reject H₀ - there is a difference in errors D)Fail to reject H₀ - there is a difference in errors

Question

Quizplus · Accepted Answer

The null hypothesis states that there is no difference in the means of the three processes, while the alternative hypothesis states that at least one of the means is different. Based on the ANOVA table, the p-value is less than 0.05, which means we reject the null hypothesis and conclude that there is evidence of a difference in the means. Therefore, the best choice is A, to reject the null hypothesis.

A Manufacturer of Automobile Transmissions Uses Three Different Processes