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Table 101 -Use the Information in Table 10

question 80

Multiple Choice

Table 10.1
$\begin{array} { | l | c | } \hline \ { \text { Month } } & \text { Demand } \\\hline \text { January } & 55 \\\text { February } & 52 \\\text { March } & 57 \\\text { April } & 64 \\\text { May } & 58 \\\text { June } & 54 \\\text { July } & 62 \\\text { August } & 69 \\\hline\end{array}$
-Use the information in Table 10.1.Your boss has asked you to find a good technique to forecast short-term demand for an important product.You have decided to test the following four techniques against the historical data already given:
?Three-month simple moving average
?Three-month weighted moving average,with weight of 0.6 for the most recent month,0.3 for the second-most-recent month,and 0.1 for the third-most-recent month
?Three-month weighted moving average,with weights of 0.5 for the most recent month,0.3 for the second-most-recent month,and 0.2 for the third-most-recent month
HExponential smoothing (a = 0.3 and the forecast for March was 55)
Use each of the four techniques to forecast April through August,and then use the five months of forecasts to calculate MAD.Round all forecasts to the nearest whole number (i.e.,57.5 rounds to 58) just before doing your MAD calculations.Which of the four techniques is best in terms of MAD?

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