Here Is an Excel ANOVA Table That Summarizes the Results

Multiple Choice

Here is an Excel ANOVA table that summarizes the results of an experiment to assess the effects of ambient noise level and plant location on worker productivity. The test used ? = 0.05. $$\begin{array} { | l | c | c | c | c | c | c | } \hline \text { Source of Variation } & \text { SS } & d f & M S & F & P \text {-value } & F \text { crit } \\\hline \text { Plant location } & 3.0075 & 3 & 1.0025 & 2.561 & 0.1199 & 3.862 \\\hline \text { Noise level } & 8.4075 & 3 & 2.8025 & 7.160 & 0.0093 & 3.863 \\\hline \text { Error } & 3.5225 & 9 & 0.3914 & & & \\\hline \text { Total } & 14.9375 & & & & & \\\hline\end{array}$$ The sample size is:

A) 15.
B) 10.
C) 16.
D) impossible to determine.