question #3 Same Problem statement: Weekly demand for the latest Smart Phone (the whyPhone 4640) at a retailer is normally distributed with a mean of 800 phones and a standard deviation of 200. Currently, the store places orders to the supplier with a reorder point of 3,500 phones. Replenishment lead time is 4 weeks, fixed order cost per order is $100, each phone costs the retailer $200, and the inventory holding cost is 25% per year. With a safety stock of 320 boxes, the service level is at least how much (as a percentage without decimals; for example for 100% type in 100)? Numeric Response