Question: Given the following sample data: Group 1 Group 2 Group 3 10 8 13 9 6 12 11 8 12 12 9 11 13 10

Given the following sample data:

Group 1 Group 2 Group 3 10 8 13 9 6 12 11 8 12 12 9 11 13 10 13 12 10 15

a. State the appropriate null and alternative hypotheses for determining whether a difference exists in the median value for the three populations.

b. Based on the sample data, use the Kruskal–Wallis ANOVA procedure to test the null hypothesis using a  0.05. What conclusion should be reached?

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