Problem 12-19 (Algo) Given this information: Expected demand during lead time = 310 units Standard deviation of lead time demand = 28 units Use Table. Determine each of the following, assuming that lead time demand is distributed normally: a. The ROP that will provide a risk of stockout of 1 percent during lead time. (Round your answer to the nearest whole number.) ROP units b. The safety stock needed to attain a 1 percent risk of stockout during lead time. (Do not round intermediate calculations. Round your answer to the nearest whole number.) Safety stock units Problem 12-8 (Algo) Suppose that the manager of a construction supply house determined from historical records that demand for sand averages 51 tons. In addition, suppose the manager determined that demand during lead time could be described by a normal distribution that has a mean of 51 and a standard deviation of 5 tons. Answer the following questions assuming that the manager is willing to accept a stockout risk of no more than 2 percent. Use Table B.2 (Round your answer to two decimal points.) a. What value of z is appropriate? Z-Value b. How much safety stock should be held? (Round your answer to two decimal points.) Safety Stock c. What reorder point should be used? (Round your answer to two decimal points.) Reorder Point