1. Nonparametric ANOVA.

Use the ex1719_XXX.dat dataset from Problem A again and:

1. (W, P, O)Report the median OPI in each fund category and perform the Kruskall-Wallis test for differences in median OPI among fund categories. Summarize your findings.

1. (W, P, O)Use ANOVA on ranks to nonparametrically test for differences in OPI among fund categories. Use a multiple comparisons procedure to investigate pairwise differences between fund categories. Summarize your findings.

1. (W) Compare your findings from parts 1 and 2, and summarize your overall conclusions based on nonparametric analysis.

1. (W) Would you recommend the parametric approach you used in Question 1 or a nonparametric approach from this Question? Why?