Given the following demand data, computo a simple exponential smoothing forecist for aipha values of 02 and 0.5 use the actumi vitue in Period 1 as your starting forecast in Periad 2 . (Round all answers to two decimal places. Use these rounded inswen when computing subsequent answers.) 10113736 \begin{tabular}{|c|c|c|} \hline & a=0.2 & a=0.5 \\ \hline Poriod & Forecast & Forecast \\ \hline 1 & & \\ \hline 2 & & \\ \hline 3 & & \\ \hline 4 & & \\ \hline 5 & & \\ \hline 6 & & \\ \hline 7 & & \\ \hline 8 & & \\ \hline 9 & & \\ \hline 10 & & \\ \hline 11. & & \\ \hline 12 & \\ \hline \end{tabular}