-Compute the Total Forecast Error (Sum of the Forecast Errors)

question 106

Essay

$$\begin{array} { | l | l | l | } \hline \text { Week } & \text { Sales } & \text { Forecasted Sales } \\\hline 1 & 22 & 22.719 \\\hline 2 & 27 & 27.117 \\\hline 3 & 23 & 31.515 \\\hline 4 & 31 & 35.913 \\\hline 5 & 45 & 40.311 \\\hline 6 & 47 & 44.709 \\\hline 7 & 45 & 49.107 \\\hline 8 & 42 & 53.505 \\\hline\end{array}$$
-Compute the total forecast error (sum of the forecast errors)

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