Using the Data Shown Below in Table 1, Compute the Mean

Multiple Choice

Using the data shown below in Table 1, compute the mean square error, mean absolute deviation, and mean absolute percentage error for the forecasts shown and then answer Questions
Table 1
$\begin{array}{|l|c|c|}\hline \text { Month } & \text { Forecast Demand } & \text { Actual Demand } \\\hline \text { April } & 170 & 180 \\\hline \text { May } & 225 & 200 \\\hline \text { June } & 210 & 200 \\\hline \text { July } & 260 & 240 \\\hline \text { August } & 200 & 230 \\\hline\end{array}$
-The mean squared error (MSE) is:

A) less than or equal to 300.
B) more than 300 but less than or equal to 350.
C) more than 350 but less than or equal to 400.
D) more than 400 but less than or equal to 450.