(Answered) Assume a researcher compared the performance of four

Statistics

Assume a researcher compared the performance of four independent groups of participants on an ordinal variable using the Kruskal-Wallis H test. Each group had eight participants.

a. What is the df associated with this test?

b. Using a p level of 0.05 and a two-tailed test, what is the critical value?

c. Assume the researcher calculated H = 9.26. Make a decision regarding the null hypothesis and explain that decision.

d. Assume the researcher calculated H = 3.97. Make a decision regarding the null hypothesis and explain that decision.

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