Exam 10: Waiting Line Analysis and Simulation

A company is concerned about the number of customers who have to wait for service in its customer service department.Assume the rate at which customers are serviced is 12 per hour.Using the infinite queuing notion for the models presented in the textbook, which of the following is the mean time between arrivals?

Getting an autograph from a famous person might involve standing in which type of queuing line structure?

Standing in line to buy a ticket for a movie where there are multiple windows at which to buy tickets is which type of queuing system line structure?

A small vendor has either a good day of sales with an average of $1,000 or a bad day with an average of only $500 for the day.To simulate these outcomes, random numbers from 00 to 99 should be assigned with the intervals determined from the frequency distribution.If, during the last 100 days, the vendor had 27 good days and 73 bad days, which of the following is a correct random-number interval for a bad day?

The more time, money, and effort you spend developing a simulation model, the more likely you are to achieve useful results.

A constant arrival rate is more common in productive systems than a variable arrival rate.

In what ways can management influence the arrival patterns of waiting lines?

Regardless of the computer language chosen for a simulation model, too much data from a simulation can be dysfunctional to problem solving.

The demand on a hospital's emergency medical services is considered a controllable arrival pattern of the calling population.

In essence, a queuing system includes several major components.Which of the following is not one of them?

Gas stations, loading docks, and parking lots have infinite potential length of lines for their respective queuing systems.

When arrivals occur in a purely random fashion at a service facility, the distribution of the number of arrivals per unit of time forms which kind of distribution? ______________________________________

A car wash is an example of a single-channel, multiphase queuing system.

Being user-friendly and easy to understand is considered a desirable feature of simulation software systems.

Joining a line at an airport shoeshine stand where there are five people shining shoes puts you in which type of queuing system line structure? ______________________________________________________

In a department 25 machines are kept running by three operators who respond to randomly occurring equipment problems.When an operator is not immediately available for servicing a machine having a problem, the amount of production being lost by machines waiting for service increases.An analyst can use queuing theory analysis to determine whether to pay overtime to get an operator from a different shift or not.

Machine breakdown and repair in a 12-machine factory having three repair mechanics would develop which type of queuing system line structure concerning machine breakdowns?

Spreadsheet simulations have become obsolete due in part to specialized computer simulation languages like SLAM or SIMAN.

The leading general- and special-purpose simulation models follow a well-documented and standardized approach.

Special-purpose simulation software is specially built to run specific applications and may have provisions in manufacturing models to allow for specifying the number of workcenters, their descriptions, arrival rates, and even batch sizes.