Q45Section I (Objective (Q1–Q80))45 of 80
Design of Experiments — degrees of freedom for a 3x3 teaching-methods design
Consider the following for the next three (03) items: In order to test the effectiveness of three different teaching methods, three instructors were assigned 12 students each. The students were then randomly assigned to the different teaching methods and were taught exactly the same material. The following ANOVA table was obtained: Methods SS=162, Instructors SS=90, Interaction SS=600, Error SS=900 (36 students total). Complete the two-way ANOVA table with interaction. The degrees of freedom associated with the methods, instructors, interaction and errors are respectively
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