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Kruskal-Wallis. HypothesesHo : the k distributions are identicalH1 : not all distributions are the sameOrHo : there is no difference among the k groups with respect to yH1 : at least one of the k groups of x differs from the other with respect to y. Kruskal-Wallis. Critical Valuea = %d. f. =
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1. Kruskal-Wallis H test
2. Kruskal-Wallis Hypotheses
Ho : the k distributions are identical
H1 : not all distributions are the same
Or
Ho : there is no difference among the k groups with respect to y
H1 : at least one of the k groups of x differs from the other with respect to y
3. Kruskal-Wallis Critical Value
a = %
d. f. = k – 1
Where k = number of groups being compared
The statistic follows the chi-squared distribution.
4. Kruskal-Wallis Test Statistic