Given is a historical time series for job services demand in the prior 6 months. Month Demand 1 16 2 15 3 17 4 15 5 20 6 22 a) The MAD based on the Exponential smoothing α = 0.3 method = 2.5258 (4 decimal places) b) The MAD based on the 3 months moving average method = 3.3333 (in 4 decimal places) c) The MSE based on the 3 months moving average method = 13.8519 d) Use MAD as an criterion to evaluate forecasting methods I (exponential smoothing, α = 0.3) and II (3 month moving average). The most accurate forecasting methods between I and II is method = I (select to type in as I or II)