Consider the following

eook Consider the following gasoline sales time series. If needed, round your answers to two-decimal digits. Week Sales (1,0005 of gallons) 1 17 2 21 3 16 4 24 5 17 6 18 7 22 8 20 9 21 10 19 11 16 12 25 (a) ShowI the exponential smoothing forecasts using a = 0.1, and o = 0.2. Exponential Smoothing Week a 13 l | | l (b) Applying the MSE measure of forecast accuracy, would you prefer a smoothing constant of o = 0.1 or o = 0.2 for the gasoline sales time series? I An 0 = 0. v smoothing constant provides the more accurate forecast, with an overall MSE of] l . (I2) Are the results the same if you apply MAE as the measure of accuracy? I An 0 : 0. v smoothing constant provides the more accurate forecast, with an overall MAE of] l . (d) What are the results if MAPE is used? I An 0 : II). V smoothing constant provides the more accurate forecast, with an overall MAPE ofl