Data on demand over the last few years are available as follows: $$\begin{array} { l l }
\text { Time Period } & \text { Demand } \
\hline 7 \text { years ago } & 7 \
6 \text { years ago } & 28 \
\text { 5 years ago } & 21 \
\text { 4 years ago } & 42 \
\text { 3 years ago } & 35 \
\text { 2 years ago } & 56 \
\text { Last year } & 49
\end{array}$$ What is this year's forecast using trend-adjusted (double) smoothing with alpha = .2 and beta = .1, if the forecast for last year was 56, the forecast for two years ago was 46, and the trend estimate for last year's forecast was 7?

Question

Data on demand over the last few years are available as follows: $$\begin{array} { l l } 
\text { Time Period } & \text { Demand } \
\hline 7 \text { years ago } & 7 \
6 \text { years ago } & 28 \
\text { 5 years ago } & 21 \
\text { 4 years ago } & 42 \
\text { 3 years ago } & 35 \
\text { 2 years ago } & 56 \
\text { Last year } & 49
\end{array}$$ What is this year's forecast using trend-adjusted (double) smoothing with alpha = .2 and beta = .1, if the forecast for last year was 56, the forecast for two years ago was 46, and the trend estimate for last year's forecast was 7?

Quizplus · Accepted Answer

The Answer of Data on demand over the last few years are available as follows: $$\begin{array} { l l } 
\text { Time Period } & \text { Demand } \
\hline 7 \text { years ago } & 7 \
6 \text { years ago } & 28 \
\text { 5 years ago } & 21 \
\text { 4 years ago } & 42 \
\text { 3 years ago } & 35 \
\text { 2 years ago } & 56 \
\text { Last year } & 49
\end{array}$$ What is this year's forecast using trend-adjusted (double) smoothing with alpha = .2 and beta = .1, if the forecast for last year was 56, the forecast for two years ago was 46, and the trend estimate for last year's forecast was 7?

Data on Demand Over the Last Few Years Are Available