You are reviewing a process within your organization whete there are indications of consumer dissatisfaction with waiting too long for service. the management team has determined that an average wait timr of 30 minutes is normal. peak data indicates
average arrival rate 5 min
standard deviation of arrivals 10min
average time of service 3 min
standard deviation of service time 4.5 min
utilization 85%
what is the wait time in minutes