only need question 13

QUEUING The local coffee shop has 2 employees, one takes the orders and then takes payment, and the other worker makes the coflee drinks. While some folks ask for a simple cup of coflee that just needs to be poured, others ask for more elaborate cotlee drinks, and others order multiple drinks. On average, though, it takes a total of 1 min and 15 seconds to process a customer, take the order, make the payment, and make the drink(s). During the buslest time of the day. 7:30am to 9:30am, about 39.5 customers come in per hour: Question 11 Since the two workers only service one customer at a time, they are in fact working like a single worker. What percentage of the time is this single team of workers busy? Questlon 112 What is the average time a customer waits belore they place an order? (In minutes) Question 13 What is the average number of customers in the line? What is the average number of customers in the line? (Choose the closest answer) 5.85 3.82 5.12 4.10 3.07 8.71 5.89 2.17 2.90 6.20