The following Minitab display results from a study in which three different teachers taught calculus classes of five different sizes. The class average was recorded for each class. Assuming no effect from the interaction between teacher and class size, test the claim that class size has no effect on the class average. Use a 0.05 significance level. $$\begin{array} { l r r r c c }
\text { Source } & \text { DF } & \text { SS } & { \text { MS } } & \text { F } & \text { p } \
\text { Teacher } & 2 & 56.93 & 28.47 & 1.018 & 0.404 \
\text { Class Size } & 4 & 672.67 & 168.17 & 6.013 & 0.016 \
\text { Error } & 8 & 223.73 & 27.97 & & \
\text { Total } & 14 & 953.33 & & &
\end{array}$$

Question

The following Minitab display results from a study in which three different teachers taught calculus classes of five different sizes. The class average was recorded for each class. Assuming no effect from the interaction between teacher and class size, test the claim that class size has no effect on the class average. Use a 0.05 significance level. $$\begin{array} { l r r r c c } 
\text { Source } & \text { DF } & \text { SS } &  { \text { MS } } & \text { F } & \text { p } \
\text { Teacher } & 2 & 56.93 & 28.47 & 1.018 & 0.404 \
\text { Class Size } & 4 & 672.67 & 168.17 & 6.013 & 0.016 \
\text { Error } & 8 & 223.73 & 27.97 & & \
\text { Total } & 14 & 953.33 & & &
\end{array}$$

Quizplus · Accepted Answer

The Answer of The following Minitab display results from a study in which three different teachers taught calculus classes of five different sizes. The class average was recorded for each class. Assuming no effect from the interaction between teacher and class size, test the claim that class size has no effect on the class average. Use a 0.05 significance level. $$\begin{array} { l r r r c c } 
\text { Source } & \text { DF } & \text { SS } &  { \text { MS } } & \text { F } & \text { p } \
\text { Teacher } & 2 & 56.93 & 28.47 & 1.018 & 0.404 \
\text { Class Size } & 4 & 672.67 & 168.17 & 6.013 & 0.016 \
\text { Error } & 8 & 223.73 & 27.97 & & \
\text { Total } & 14 & 953.33 & & &
\end{array}$$

The Following Minitab Display Results from a Study in Which