Question 1 (0.5 points) A basic difference between infinite source and finite source queuing models is: processing (service) rate size of potential calling population the average waiting time the arrival pattern the number of servers Question 2 (0.5 points) The total cost curve: Starts high, declines, then increases again. Starts at zero and increases as service capacity increases. Starts at zero, increases rapidly, then declines slowly back to zero. Remains relatively flat regardless of service capacity, Begins high and decreases as service capacity increases. Question 3 (0.5 points) A single channel waiting line system has an average service time of 16 minutes per customer, which is variable. The manager is thinking of converting to a system with a constant service time of 16 minutes. The arrival rate will remain the same. The effect will be to: not have any effect since the service time is unchanged increase the average time spent in the system decrease the average number of people waiting in line increase the average waiting time