This demand schedule can be assumed to be random, to follow a normal distribution, and to be representative of what will occur in the future. Rex estimates that a fixed cost of $$300$ is incurred each time an order is placed for the boards, and that the inventory holding cost is about $20\%$ per year of the value of inventory. Each board has an estimated value of $$192$ at the point of storage. The lead time on purchase orders is $(1/5)$ month.

Part A: What is the EOQ?

Part B: What is the safety stock required to assure the management that the chance of a stock out in a cycle is no more than $1\%?$

Part C: What is the reorder level?