Use the following demand data (a) to produce a double exponential smoothing forecast for period 13. Use a smoothing constant, a, equal to 0.20. Use 248 as the initial SES and DES forecasts. Click the icon to view the demand for the previous 12 periods. Complete the table below for a double exponential smoothing forecast (enter your responses rounded to one decimal place). Period 1 2 3 45 6 7 8 9 10 11 12 a 248 295 186 286 235 240 262 279 280 255 310 272 FD, (DES) Next

Use the following demand data (at) to produce a double exponential smoothing forecast for period 13 . Use a smoothing constant, , equal to 0.20 . Use 248 as the initial SES and DES forecasts. Click the icon to view the demand for the previous 12 periods. Complete the table below for a double exponential smoothing forecast (enter your responses rounded to one decimal place). \begin{tabular}{cc} \hline Period & at \\ \hline 1 & 248 \\ 2 & 295 \\ 3 & 186 \\ 4 & 286 \\ 5 & 235 \\ 6 & 240 \\ 7 & 262 \\ 8 & 279 \\ 9 & 280 \\ 10 & 255 \\ 11 & 310 \\ 12 & 272 \\ \hline \end{tabular}