The Kruskal-Wallis test is always:
a. one-tail
b. two-tail
c. used with one sample
d. used with only two samples
e. used when the populations are normally distributed
Question 2
The nonparametric counterpart of the parametric one-way analysis of variance F-test is the:
a. Kruskal-Wallis test
b. Friedman test
c. Wilcoxon rank sum test
d. Wilcoxon signed rank sum test
e. two-tailed t-test