The actual and forecast values of a time series are shown below. $$\begin{array} { | c c | }
\hline \text { Actual values } y _ { t } & \text { Forecast values } F _ { t } \
\hline 135 & 140 \
162 & 165 \
155 & 150 \
182 & 191 \
174 & 168 \
194 & 190 \
233 & 220 \
280 & 240 \
\hline
\end{array}$$ a. Calculate the mean absolute deviation (MAD).
b. Calculate the sum of squares for forecast error (SSE).

Question

The actual and forecast values of a time series are shown below. $$\begin{array} { | c c | } 
\hline \text { Actual values } y _ { t } & \text { Forecast values } F _ { t } \
\hline 135 & 140 \
162 & 165 \
155 & 150 \
182 & 191 \
174 & 168 \
194 & 190 \
233 & 220 \
280 & 240 \
\hline
\end{array}$$ a. Calculate the mean absolute deviation (MAD).
b. Calculate the sum of squares for forecast error (SSE).

Quizplus · Accepted Answer

The Answer of The actual and forecast values of a time series are shown below. $$\begin{array} { | c c | } 
\hline \text { Actual values } y _ { t } & \text { Forecast values } F _ { t } \
\hline 135 & 140 \
162 & 165 \
155 & 150 \
182 & 191 \
174 & 168 \
194 & 190 \
233 & 220 \
280 & 240 \
\hline
\end{array}$$ a. Calculate the mean absolute deviation (MAD).
b. Calculate the sum of squares for forecast error (SSE).

The Actual and Forecast Values of a Time Series Are