Average demand =50 units per day Average lead time =20 days Item unit cost =$76 for orders of less than 400 units Item unit cost =$70 for orders of 400 units or more Ordering cost =$52 Inventory carrying cost =20% The business year is 300 days Standard deviation of demand =2.9 units Standard deviation of lead time =1.5 days Desired service level = 95\% a. What is the annual total acquisition cost of ordering at the $76 price? (Do not round intermediate calculations. Round your calculation for EOQ to the nearest whole number and final answer to 2 decimal places.) b. What is the annual total acquisition cost of ordering at the $70 price? (Round your answer to 2 decimal places.) c. What level of safety stock should Johnson maintain for the item? (Do not round intermediote calculations, Round up your answe to the next whole number.) d. If Johnson chooses the ordering policy that results in the lowest total annual acquisition cost, and maintains the safety stock level for 95 percent service, what will Johnson's average inventory be for this item? e. What will the annual imventory turnover rate be for this item? (Round your answer to 1 decimal place.)