Refer to Exercise 14.5. When the normality condition is violated, an alternative to the F test is the Kruskal€“ Wallis test (see Section 8.6).
a. Test for differences in the median outputs of the four incentive plans. Use α = .05.
b. Why do you think the conclusions reached using the Kruskal€“ Wallis test differ from the conclusions reached using the F test from the AOV table in Exercise 14.5?
In exercise

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