Ul Lyudi 10 225 pounds. d. more than 225 pounds. 2. Using the data regarding the inventory management of a stock-keeping unit shown in the following table, it can be concluded that the optimal replenishment level with safety stock for a fixed-period system (FPS) under the model assumptions is: Demand 140 units per week Order Cost $30 per order Inventory-Holding Cost $0.4 per unit per year Lead Time 3 weeks Economic Time Interval 7 weeks Standard Deviation in Weekly Demand Acceptable Service Level 95 percent Standard Deviations to Achieve the Acceptable Service 1.645 Level b. more than 1,550 but less than 1,650 units. c. more than 1,650 but less than 1,750 units. d. more than 1,750 but less than 1,850 units. 3. Brenda is the owner of a spa store that operates 50 weeks per year. Spair Shampoo is a high margin stock keeping u (SKU), but the product goes out of stock frequently. She decides to use a fixed-quantity system (FQS) and orders box Spair Shampoo containing 10 bottles per box from a vendor 160 miles away. She collects the following data with resp o the sales of Spair Shampoo. Demand |10 boxes per week $40 per order