A B D E F G N 00 3 Instruction: Please use exponential smoothing method to forecast the demand for peirods 3-13 1 2 3 Alpha (a) 0.2 4 5 Period Actual Demand Forecast 6 1 1,400 7 2 2,000 1,400.0 3 1,800 9 4. 1,700 10 5 2,300 11 6 3,500 7 3,000 13 8 2,900 14 9 4,100 15 10 4,700 16 11 4,300 17 12 4,600 18 13 19 20 5 12 UN 21 22 23