$2.**$ The inventory management department determines that there will be a stockout twice a year. The forecasted demand for products is $100,000$ units per year, and the order size is $10,000$ units per order. The lead time is $2$ weeks. The sales history for the past $10$ weeks is shown in the table. $\backslash$table$[[$Week$,$Actual Sales,Exponential Smoothing,Exponential Smoothing $($Double$)],[1,2100,,],[2,1700,,],[3,2600,,],[4,1400,,],[5,1800,,],[6,2300,,],[7,2200,,],[8,1600,,],[9,2100,,],[10,2200,,]]$