QR-1397 Fоr аny intermediаte cаlculatiоns use 4 significant figures. When entering a decimal answer, fоr example 0.245, please enter 0.245 and not .245. For final answers see the text highlighted in green Lowes Depot uses a (Q, R) policy to manage its stock levels. The replacement lead time from the supplier for the drill is 20 weeks. For a popular mini drill, historical demand shows the demand during the replacement lead time is approximately X ~ N(115.3847, 10.74182). Each drill cost the store $10. Although excess demand is backordered, each time this occurs there is a loss of goodwill of $5. Each time an order is placed, the supplier charges $25. Holding costs are based on a 20% annual interest rate. Assume 12 months per year and 52 weeks per year. Note: If when looking up