Teaching Methods Narrative
Two Different Workbooks and Two Distinct Teaching $\alpha$

Essay

Teaching Methods Narrative
Two different workbooks and two distinct teaching machines were to be evaluated on their effectiveness in teaching the concept of multiplication. A Grade 4 class of 24 subjects was randomly assigned to 4 groups, and each group in turn was randomly assigned to a teaching method. A test was given and the number of errors was recorded. This uses the Kruskal-Wallis H test to see if the number of errors differs from one teaching method to another.
-Refer to Teaching Methods Narrative. Find the rejection region for $\alpha$ = 0.05.