Given the following demand data, compute a simple exponential smoothing forecast for alpha values of 0.2 and 0.4. Use the actual value in Period 1 as your starting forecast in Period 2. (Round all your calculations to two decimal points.) Period 1 4 4 5 6 7 8 Actual Demand 55 56 54 54 53 52 53 51 53 53 55 10 11 a = 0.2 a = 0.4 Period Forecast Forecast 1 2 3 55.00 55.20 54.96 55.00 55.40 54.84 4 5 54.77 54.50 6 7 8 53.90 53.14 53.08 52.25 52.55 52.73 53.75 53.20 53.16 53.13 9 10 11 12