Question

Consider a two-way analysis of variance experiment with treatment factors A and B, with factor A having four levels and factor B having three levels. The results are summarized below.
Source of Variation df SS
Factor A 71
Factor B 63
Interaction 50
Error 280
Total 71 446

Compute the mean squares and appropriate F statistics to test the null hypotheses of no effect from either factor at = .05 (assumption: no interaction effect).

Answer

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