Questions Are Based on the Following ANOVA Summary Table (Fixed

Multiple Choice

Questions are based on the following ANOVA summary table (fixed effects) :

$\begin{array}{crcc}\hline \text { Source } & \text { df } & \boldsymbol{M S} & F \\\hline \mathrm{A} & 2 & 15 & 3.0 \\\mathrm{~B} & 3 & 10 & 2.0 \\\mathrm{AB} & 6 & 3 & 0.6 \\\text { Within } & 120 & 5 & \\\hline\end{array}$
-For which source of variation is the null hypothesis rejected at the .10 level of significance?

A) A
B) B
C) AB
D) All of the above