The "Standard Normal Table" is just a chart for the z-scores (couldn't take a screenshot it was too big).

In a P system, the lead time for a box of weed-killer is two weeks and the review period is one week. Demand during the protection interval averages 258 boxes, with a standard deviation of 40 boxes. a. What is the cycle-service level when the target inventory is set at 350 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 190 boxes, but with a standard deviation of 60 boxes. What would be the cycle-service level if management keeps the target inventory level set at 350 boxes? Refer to the standard normal table as needed. The cycle-service level would be %. (Enter your response rounded to two decimal places.)