a P system , the lead time for a box of weed - killer is three weeks and the review period is one week . Demand during the protection interval averages 215 boxes , with standard deviation of demand during the protection interval of 50 boxes . . What is the cycle - service level when the target inventory is set at 250 boxes ? Refer to the standard normal table as needed . The cycle - service level is ___ % . ( Enter your response rounded to two decimal places . ) b . In the fall season , demand for weed - killer decreases but also becomes more highly variable . Assume that during the fall season , demand during the protection interval is expected to decrease to 170 boxes , but with a standard deviation of demand during the protection interval of 60 boxes . What would be the cycle - service level if management keeps the target inventory level set at 250 boxes ? Refer to the standard normal table as needed The cycle - service level would be ____ % . ( Enter your response rounded to two decimal places . )