The Milwaukee Bucks Team Shop also sold 2019 Playoffs t-shirts. Each t-shirt cost $4.00 and was sold for $15.00 to customers. If the Team Shop ordered too many, they had an agreement with Overstock.com to buy any excess t-shirts. It cost $0.25 per t-shirt to ship extra shirts to Overstock.com, but Overstock.com paid the Team Shop $1 for each excess shirt. The Team Shop expected demand to be 2,500 t-shirts with a standard deviation of 600 t-shirts. a) What was the target service level? (3 points) b) How many 2019 Playoffs t-shirts should the Team Shop have ordered? (3 points)