The following table contains the demand from the last 10 months: a. Calculate the single exponential smoothing forecast for these data using an a of 0.30 and an initial forecast (F1) of 31 Note: Round your answers to 2 decimal places. Answer is complete and correct. b. Caiculate the exponential smoothing with trend forecast for these data using an a of 0.30 , a of 0.30 , an initial trend forecast (I1) of 100 , and an initial exponentially smoothed forecast (F1) of 3000 . Note: Round your answers to 2 decimal places. Answer is complete but not entirely correct. c-1. Calculate the mean absolute deviation (MAD) for the last nine months of forecasts. Note: Round your answers to 2 decimal places