Bill Nye is responsible for managing the inventory for a professional microscope at Wonderkid science supply store. An order arrives 9 days after it is placed and orders may be placed every 21 days. Weekly demand for microscopes follows a normal distribution with a mean of 90 units per week and a standard deviation of 30 units. The annual holding cost of the microscope is 25% of the procurement cost per unit which is $600. Wonderkid requires a 97% service level for microscopes and uses a base stock policy for its microscope inventory. Assume that there are 7 working days in a week, 52 weeks in a year, and 364 working days in a year. Enter all computations rounded to two decimal places. Compute the order-up-to level and safety stock for microscopes. a) Order-Up-To Level = units. b) Safety Stock = units. c) At the end of a given review period, Wonderkid has 300 units in stock and 85 on order. How many units should Wonderkid order based on your target inventory position? Round up to the nearest unit if necessary. Order units. d) At the end of a later review period, Wonderkid has 400 units in stock and 200 on order. How many units should Wonderkid order based on your target inventory position? Round up to the nearest unit if necessary. Order units. Bill Nye is responsible for managing the inventory for a professional microscope at Wonderkid science supply store. An order arrives 9 days after it is placed and orders may be placed every 21 days. Weekly demand for microscopes follows a normal distribution with a mean of 90 units per week and a standard deviation of 30 units. The annual holding cost of the microscope is 25% of the procurement cost per unit which is $600. Wonderkid requires a 97% service level for microscopes and uses a base stock policy for its microscope inventory. Assume that there are 7 working days in a week, 52 weeks in a year, and 364 working days in a year. Enter all computations rounded to two decimal places. Compute the order-up-to level and safety stock for microscopes. a) Order-Up-To Level = units. b) Safety Stock = units. c) At the end of a given review period, Wonderkid has 300 units in stock and 85 on order. How many units should Wonderkid order based on your target inventory position? Round up to the nearest unit if necessary. Order units. d) At the end of a later review period, Wonderkid has 400 units in stock and 200 on order. How many units should Wonderkid order based on your target inventory position? Round up to the nearest unit if necessary. Order units