Question: Five sections of the same elementary mathematics course are taught by 5 different teachers. Teacher 1 Teacher 2 Teacher 3 Teacher 4 Teacher 5 Group

Five sections of the same elementary mathematics course are taught by 5 different teachers. Teacher 1 Teacher 2 Teacher 3 Teacher 4 Teacher 5 Group Sample Size ni 12 15 13 10 11 Group Mean xi: 68.08 71.40 64.46 74.70 77.36 Group Variance s2i 343.90 327.97 414.60 127.57 121.05

(a) Use the Tukey method to test all pairwise contrasts. Consider aE = 0.01. (b) Without any computation, what would be the result of a F ratio test for theequality of means?

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