The Following Table Shows the Results of an Analysis of Variance

Multiple Choice

The following table shows the results of an analysis of variance comparing three treatments.What is the value of ²,the percentage of variance accounted for,for these data?
$$\begin{array} { l r r r r } \text { Source } & S S & d f & M S & \\\text { Between } & 30 & 2 & 15 & F = 7.50 \\\text { Within } & 60 & 30 & 2 & \\\text { Total } & 90 & 32 & &\end{array}$$

A) 30/60 = .5
B) 30/90 = .33
C) 60/90 = .67
D) 2/30 = .067