A portion of an ANOVA summary table is shown below.
$\begin{array} { l c c } \text { Source } & \text { Sum of Squares } & \text { Degrees of Freedom } \ \text { Between } & 20 & 2 \ \text { Within (error) } & 35 & 29 \ \text { Total } & 55 \end{array}$
The critical value for this problem should have dfN (degrees of freedom in the numerator dfD (degrees of freedom in the denominator) of
A) dfN = 35, dfD = 20
B) dfN = 29, dfD = 2
C) dfN = 20, dfD = 35
D) dfN = 2, dfD = 29

Question

Quizplus · Accepted Answer

In an ANOVA table, the degrees of freedom in the numerator (dfN) correspond to the "Between" group variation, and the degrees of freedom in the denominator (dfD) correspond to the "Within" or "Error" variation. Therefore, dfN = 2 and dfD = 29.

A Portion of an ANOVA Summary Table Is Shown Below