I need help finding both mean absolute deviations! Thank you!

Problem 3-7 (Algo) The following table contains the demand from the last 10 months: MONTH 1 2 3 4 5 6 7 8 9 10 ACTUAL DEMAND 28 30 29 40 43 42 43 45 44 47 a. Calculate the single exponential smoothing forecast for these data using an a of 0 20 and an initial forecast (For 28. {Round your Intermediate calculations and answers to 2 decimal places.) 10 Month Answer is complete and correct. Exponential Smoothing 28.00 28.00 1 2 3 28.40 5 7 3032 33.25 35.00 3600 3520 30.43 8 00 10 Return to question 4. b. Calculate the exponential smoothing with trend forecast for these data using an a of 0 20. a 6 oro 30, an initial trend forecastity of 100, and an initial exponentially smoothed forecast (F) of 27 (Round your intermediate calculations and answers to 2 decimal places) 10 Answer is complete and correct. Month 28.09 2 30:20 4 5 3432 38.10 50 10 c-1. Calculate the mean absolute deviation (MAD) for the last nine months of forecasts. (Round your intermediate calculations and answers to 2 decimal places.) Answer is not complete MAD Single exponential smoothing forecast Exponential smoothing with trend forecast