Queuing Theory Six nurses are working at a vaccination clinic. Each of them can administer five immunizations per hour, including patient consultation, paperwork, and the injection. The clinic manager schedules patients in one-hour blocks of 25 appointments (25 patients/hour). On average, how long will a patient have to wait after arriving to get his or her injection? Hint: Use the QT Calc no waiting time 2.4 minutes 4.2 minutes 5 minutes 10 minutes