A Time Series with Forecast Values and Error Terms Is

question 49

Multiple Choice

A time series with forecast values and error terms is presented in the following table.The mean error (ME) for this forecast is ___________. $\begin{array}{|r|r|r|r|}\hline \text { Monthh } & \text { Actual } & \text { Forecast} & \text { Error } \\\hline \text { July } & 5 & & \\\hline \text { Aug } & 11 & 5 & 6.00 \\\hline \text { Sept } & 13 & 6.8 & 6.20 \\\hline \text { Oct } & 6 & 8.66 & -2.66 \\\hline \text { Nov } & 5 & 7.862 & -2.86 \\\hline\end{array}$

• A)1.67
• B)1.34
• C)6.68
• D)3.67
• E)2.87

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