Weekly demand figures at Hot Pizza are as follows: WeekDemand($) 1108 2112 3113 4126 598 6109 799 8114 9102 10111 1199 1296 In the essay, please describe the role of forecasting and describe the two forecasting approaches: the moving average method and the simple exponential smoothing method. Furthermore, explain MADt, MAPEt, MSEt, bias, and TSt. Then on the Excel template provided, calculate demand estimates for Week 5 to Week 12 using a 4-week moving average as well as simple exponential smoothing with α = 0.1, using the Hot Pizza weekly demand figures provided. In the essay, analyze which method performs better for this case by referring to the two tables from the Excel template. Besides, make an analysis based on the TS values you reached.