Given the following demand data, compute a simple exponential smoothing forecast for alpha values of 0.3 and 0.5. Use the actual value in Period 1 as your starting forecast in Period 2. (Round all your calculations to two decimal points.) Period Actual Demand 1 31 33 31 34 31 31 33 33 35 36 34 a=0.3 a=0.5 Period Forecast Forecast 1 2 3 4 5 0 7 8 9 10 11 12