. C E F H Instruction: Please use simple moving average method (4 periods) to forecast the demand for pelrods 5-13 1 2 Moving Average Forecast (4 periods) 3 4 Period Actual Demand Forecast 5 1 1,300 6 2 2,400 7 3 2,200 8 4 1,400 9 5 2,700 10 6 3,700 11 7 3,200 12 8 3,100 13 9 3,900 14 10 4,500 15 11 4,100 16 12 4,300 17 13 18 19 20