Using the following one-way ANOVA summary table, what is the value of the F-ratio (D in the source table)? $\begin{array}{|l|l|l|l|l|l|}
\hline \text { Source of variation } & \text { SS } & \text { df } & \text { MS } & \text { F } & \text { P } \
\hline \text { Between } & 200 & 4 & \text { B } & \text { D } & .01 \
\hline \text { Within } & \text { A } & 80 & \text { C } & & \
\hline \text { Total } & 1000 & & & & \
\hline
\end{array}$
A) 1.5
B) 5.0
C) 10
D) 12

Question

Quizplus · Accepted Answer

The F-ratio (D) is calculated by dividing the mean square between groups (MS between) by the mean square within groups (MS within). Given that SS between is 200 with df of 4, MS between = SS between / df between = 200 / 4 = 50. SS within is not directly given, but we can calculate MS within as SS within / df within. Given df within is 80, and to find SS within, we subtract SS between from SS total (1000 - 200 = 800). Thus, MS within = 800 / 80 = 10. Therefore, F = MS between / MS within = 50 / 10 = 5.0.

Using the Following One-Way ANOVA Summary Table, What Is the Value