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:

Inflation

The upward movement in the overall price points of goods and services, cutting down on purchasing strength.

Average Price Level

A measure of the overall level of prices in an economy, often considered in terms of a price index.

Good and Service

Products that satisfy human wants directly (goods) or indirectly (services).

Hyperinflation

An extremely high and typically accelerating rate of inflation, often exceeding 50% per month, leading to a rapid erosion of the real value of the local currency.