Calculate the forecast for month 5 using exponential forecasting using a = 0.25. b) Calculate the 2 month moving average for all available months. c) Calculate the error for exponential smoothing and the 2 month MA using MAPE. Which forecasting technique provides the best forecast (be specific)? Month 1 2 3 4 01 5 Actual Demand 22 23 24 21 Exponential Forecast 20