Q.
In a 4 × 3 factorial design with A and B as two factors, the sum of squares for A is 42 and the mean square for error is 5. What would be the F ratio associated with the main effect of A ?
[A] 2.8
[B] 7.0
[C] 8.4
[D] 10.5
Answer & Explanation
Answer: 2.8