TABLE 7-2 Standard Deviations and Probabilities Johnson Corporation has the following information about a product that it carries in stock: Use Table 7-2. Average demand =60 units per day Average lead time =20 days Item unit cost =$54 for orders of less than 400 units Item unit cost =$47 for orders of 400 units or more Ordering cost =$27 Inventory carrying cost =20% The business year is 300 days. Standard deviation of demand =3.2 units Standard deviation of lead time =2 days Desired service level =95% a. What is the annual total acquisition cost of ordering at the $54 price? b. What is the annual total acquisition cost of ordering at the $47 price? c. What level of safety stock should Johnson maintain for the item? 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. Given your answer in d, what will the annual inventory turnover rate be for this item? f. What will the reorder point be for the item? Complete this question by entering your answers in the tabs below. What level of safety stock should Johnson maintain for the item? Note: Do not round intermediate calculations. Round up your answer to the next whole numbe