The table below shows the demand for Fidgets (they're like Widgets, only they're more active) over an eight-month period. Calculate a four-period moving average forecast for September. Also evaluate the quality of the four-period moving average forecasting model by calculating the root-mean-square error for the data set. Note: Round all intermediate calculations to two decimal places.
$$\begin{array} { c c }
\text { Month } & \text { Demand } \
\text { Jan } & 10 \
\text { Feb } & 11 \
\text { Mar } & 5 \
\text { Apr } & 8 \
\text { May } & 6 \
\text { Jun } & 11 \
\text { Jul } & 5 \
\text { Aug } & 11
\end{array}$$

Question

The table below shows the demand for Fidgets (they're like Widgets, only they're more active) over an eight-month period. Calculate a four-period moving average forecast for September. Also evaluate the quality of the four-period moving average forecasting model by calculating the root-mean-square error for the data set. Note: Round all intermediate calculations to two decimal places.
 $$\begin{array} { c c } 
\text { Month } & \text { Demand } \
\text { Jan } & 10 \
\text { Feb } & 11 \
\text { Mar } & 5 \
\text { Apr } & 8 \
\text { May } & 6 \
\text { Jun } & 11 \
\text { Jul } & 5 \
\text { Aug } & 11
\end{array}$$

Quizplus · Accepted Answer

The Answer of The table below shows the demand for Fidgets (they're like Widgets, only they're more active) over an eight-month period. Calculate a four-period moving average forecast for September. Also evaluate the quality of the four-period moving average forecasting model by calculating the root-mean-square error for the data set. Note: Round all intermediate calculations to two decimal places.
 $$\begin{array} { c c } 
\text { Month } & \text { Demand } \
\text { Jan } & 10 \
\text { Feb } & 11 \
\text { Mar } & 5 \
\text { Apr } & 8 \
\text { May } & 6 \
\text { Jun } & 11 \
\text { Jul } & 5 \
\text { Aug } & 11
\end{array}$$

The Table Below Shows the Demand for Fidgets (They're Like