The following table shows the results of an analysis of variance comparing three treatment conditions with a sample of n = 7 participants in each treatment.Note that several values are missing in the table.What is the missing value for MS beetween? $$\begin{array} { l l l r l }
\text { Source } & S S & d f & M S & \
\hline \text { Between } & 20 & \mathrm { xx } & \mathrm { xx } & F = \mathrm { xx } \
\text { Within } & \mathrm { xx } & \mathrm { xx } & 2 & \
\text { Total } & \mathrm { xx } & \mathrm { xx } & &
\end{array}$$
A)2
B)5
C)10
D)40

Question

The following table shows the results of an analysis of variance comparing three treatment conditions with a sample of n = 7 participants in each treatment.Note that several values are missing in the table.What is the missing value for MS beetween? $$\begin{array} { l l l r l } 
\text { Source } & S S & d f & M S & \
\hline \text { Between } & 20 & \mathrm { xx } & \mathrm { xx } & F = \mathrm { xx } \
\text { Within } & \mathrm { xx } & \mathrm { xx } & 2 & \
\text { Total } & \mathrm { xx } & \mathrm { xx } & &
\end{array}$$
A)2
B)5
C)10
D)40

Quizplus · Accepted Answer

MS between is calculated as SS between divided by its degrees of freedom (df). Given SS between = 20 and knowing there are 3 treatment conditions (thus df between = 3 - 1 = 2), MS between = 20 / 2 = 10.

The Following Table Shows the Results of an Analysis of Variance