e. Compare the simple average forecast error and MAD for the forecasting methods in parts a., 6., C., and d. Based on these error calculations, which of the four forecast methods would you recommend? Why? (25 points) 2. An operations planner, Lovell Bradley, is developing a sales and operations plan that involves backorders. The company's demand and production rates for the next eight periods are as follows Period 2 3 4 5 6 7 8 Demand 8,200 - (48*10) 10,500 + (48*10) 7,500 - (48*10) 6,600 + (48*10) 9,200 + (48*10) 8,000 - (48*10) 6,500 - (48*10) 8,000 + (48*10) Production 7,600 8,100 8,000 8,400 8,600 7,700 8,100 8,000 Beginning inventory at the start of period 1 is 48*2 units. Calculate beginning inventory, ending inventory, average inventory, and the backorder amount, if any, for each of the next eight periods. (25 points) 2 3 4 5 6 7 8 Period: Demand Production Beginning Inventory Ending Inventory Average Inventory Backorders