Use this formula: Ft+1 = aDt + (1- a)F

Muhammad has used Exponential Smoothing (ES) with smoothing parameter a = 0.15 for the time series below. Unfortunately, due to a printing error, all but one of his forecasts are missing from the table. You may assume that Muhammad's forecast for week 5 is correct. Re-calculate Muhammad's forecasts (using ES(a = 0.15)) for weeks 3, 4, 6, 7 and 8 and briefly explain your approach. 3 6 7 8 Week Demand 85 4. 100 ? 5 110 105 90 85 ? Forecast