Forecasting Question-SMA, WMA, Exponential Smoothing, MAD (mean absolute deviation) Sales for the last 12 months at a company are the following: Forecast3 Forecast Forecast -Month 2 Month Exponenti Actual Simple Weighted al Sales ($ Moving Moving Smoothin Month M) Average Deviation Average Deviation 9 Deviation Jan 20 22 Feb 24 Mar 27 Apr 31 23.6 May 37 Jun 47 Jul 53 MAD MAD MAD a. Calculate the forecast for every possible month, according to the Simple Moving Average Method 3-Month SMA Calculate the MAD for this forecast b. Calculate the forecast for every possible month, according to the 2-Month Weighted Moving Average Method (Weights are 0.6 for the most recent month and 0 4 to the month before that) Calculate the MAD for this forecast c. Calculate the forecast for every possible month, according to the Exponetial Smoothing Method (Alpha is 0.6) Given that the forecast for January is 22 Calculate the MAD for this forecast d. Which forecasting method would you choose for your company? e. Why