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

question 70

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.

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Definitions:

Equation

An assertion in mathematics that two expressions, often including variables, are equal.

Equation

An equation is a declaration that equates two mathematical expressions, often involving variables.

Extraneous Solutions

Solutions that are found in the process of solving an equation but do not satisfy the original equation.

Extraneous Solutions

Solutions that emerge from the process of solving a problem but do not satisfy the original equation.