Problem 11-13 (Algo) Dunstreet's Department Store would like to develop an inventory ordering policy with a 99 percent probability of not stocking out. To illustrate your recommended procedure, use as an example the ordering policy for white percale sheets. Demand for white percale sheets is 4,300 per year. The store is open 365 days per year. Every four weeks (28 days) inventory is counted and a new order is placed. It takes 12 days for the sheets to be delivered. Standard deviation of demand for the sheets is eight per day. There are currently 160 sheets on-hand. How many sheets should you order? (Use Excel's NORM.S.INY() function to find the z value. Do not round intermediate calculations. Round z value to 2 decimal places and final answer to the nearest whole number.) Answer is complete but not entirely correct. Number of sheets 485