1. A goal of many waiting line problems is to help a firm find the ideal level of services that minimize the cost of waiting and the cost of providing the service.
2. Queuing theory had its beginning in the research work of ________.
3. The initial state of a queuing system (for example, when a restaurant first opens), is referred to as the ________ state.
4. Arrivals are random when they are dependent on one another and can be predicted.
5. A(n) ________ state is the normal operating condition of the queuing system.
6. The study of waiting lines is called queuing theory.