Create a forecast for December using$($Please show your work$)$ a$3$ period moving average $($simple average$)$ Weighted average using $5,3,$ and $2$ weights for the preceding $3$ months heaviest weight for the most recent month$)$ Which of these methods you believe would be more accurate to forecast demand for ski sales, and why Comment on how weights might be established and it these weights seem reasonable? B$.$ Due to competitive pressure and the volatility of the seasonal ski market, Jason would like to expand forecasting to include aDiscuss how simple and multiple linear regression could be used to increase forecasting ability What variables might you consider as part of those forecasting models, and why would you recommend those variables