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. $$\begin{array} { | l | c | c | c | c | c | c | }
\hline \text { Source of Variation } & \text { SS } & d f & \text { MS } & F & \text { P-value } & \text { F crit } \
\hline \text { Plant location } & 3.0075 & 3 & 1.0025 & 2.561 & 0.1199 & 3.862 \
\hline \text { Noise level } & 8.4075 & 3 & 2.8025 & 7.160 & 0.0093 & 3.863 \
\hline \text { Error } & 3.5225 & 9 & 0.3914 & & & \
\hline \text { Total } & 14.9375 & & & & & \
\hline
\end{array}$$ The experimental design and ANOVA appear to be:
A)replicated two factor.
B)unreplicated two-factor.
C)impossible to determine.

Question

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. $$\begin{array} { | l | c | c | c | c | c | c | } 
\hline \text { Source of Variation } & \text { SS } & d f & \text { MS } & F & \text { P-value } & \text { F crit } \
\hline \text { Plant location } & 3.0075 & 3 & 1.0025 & 2.561 & 0.1199 & 3.862 \
\hline \text { Noise level } & 8.4075 & 3 & 2.8025 & 7.160 & 0.0093 & 3.863 \
\hline \text { Error } & 3.5225 & 9 & 0.3914 & & & \
\hline \text { Total } & 14.9375 & & & & & \
\hline
\end{array}$$ The experimental design and ANOVA appear to be:
A)replicated two factor.
B)unreplicated two-factor.
C)impossible to determine.

Quizplus · Accepted Answer

The table shows two factors (plant location and noise level) with three levels each, indicating a two-factor design. The "df" (degrees of freedom) column shows that there are 3 replicates per level of each factor, indicating an unreplicated design. Therefore, this is an unreplicated two-factor design.

Here Is an Excel ANOVA Table That Summarizes the Results