fork Lane Computers (YLC) has collected the following data of actual laptop sales in the past six nonths, from September 2022 (month 1) to February 2023 (month 6). a) Cathy is a new manager of YLC, and she wants you to use a weighted moving average to forecast for the month of March with weights of 0.15,0.20, and 0.65 for December, January. and February, respectively. b) Calculate the sales forecast for the month of March using simple exponential smoothing with =0.25 when the forecast for the month of January is 242 units. c) Cathy also would like you to calculate the exponential smoothing with trend forecast of March for the above data using an (Alpha) a of 0.30 , a (delta) of 0.40 , a January forecast with trend [FIT Januar] of 350 units and an estimated January trend [TJanuary] of -2.5200 , respectively. d) Based on a certain forecasting method, Cathy forecasted sales for each month and the actual sales of each month data are summarized in the table below. Use Tracking Signal (TS) to evaluate the accuracy of the following forecasting method (from September to February). Assume that Cathy would flag the forecast/s with signals outside the \pm 36 . You must show your work by filling out the table. Is this a good or poor forecasting model? Briefly state your reason. [A simple YES or NO answer receives ZERO mark.]