Given this information
Expected demand during lead time = 300 units
Standard deviation of lead time demand = 30 units
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.)
b. The safety stock needed to attain a 1 percent risk of stockout during lead time. (Round your answer to the nearest whole number.)