(All Steps) Students asked to rate teacher on scale of 1 to 20. Students were grouped by grade they made in class. Is there a difference in ranks given
Question: Students asked to rate teacher on scale of 1 to 20. Students were grouped by grade they made in class. Is there a difference in ranks given by students with different grades? Test at .01 level. Assume that population is not normally distributed, so use Kruskal-Wallis test. State hypotheses and identify claim, find critical value(s), compute test value, make decision, summarize results.
A or B C D or F
16 19 12
17 18 14
18 16 15
15 14 10
16 19 12
17
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