An airport shops sells suitcases for travelers. The annual demand for the suitcases follows a normal distribution with an average of 3042 and a standard deviation of 900. On average, it costs the airport $2 each year to store a suitcase. The airport pays $200 in ordering costs every time they place an order for suitcases. 5.1 What is the economic order quantity for suitcases? 5.2 What is the total annual cost corresponding to the economic order quantity? Ignore fixed costs that are independent of order quantity