Using =0.6 and the following dato, compute exponential smoothing forecasts for periods 2 through 8 . (Round your intermediate calculations and final answers to 2 decimal places.) DenistureClick here for the Excel Data File A B C 1 Problem 12.7 Period Actual Demand Forecast \begin{tabular}{|l|l|} \hline 1 & 18 \\ \hline 2 & 22 \\ \hline 3 & 24 \\ \hline 4 & 22 \\ \hline 5 & 26 \\ \hline 6 & 24 \\ \hline 7 & 22 \\ \hline \end{tabular}