Exam 13: Waiting Lines and Queuing Theory Models

On a practical note - if we were to study the waiting lines in a hair salon that had only five chairs for patrons waiting, we should use an infinite queue waiting line model.

The wait time for a single-channel system is more than twice that for a two-channel system using two servers working at the same rate as the single server.

Table 13-1 -According to the information provided in Table 13-1, what proportion of time is at least one server busy?

Table 13-4 -According to Table 13-4, which presents a queuing problem with a constant service rate, on average, how many minutes does a customer spend in the service facility?

Queuing theory had its beginning in the research work of Albert Einstein.

Lines at banks where customers wait for a teller window are usually representative of a

Which of the following is not a valid queuing model based on the Kendall notation?

The study of waiting lines is called queuing theory.

A suburban specialty restaurant has developed a single drive-thru window. Customers order, pay, and pick up their food at the same window. Arrivals follow a Poisson distribution while service times follow an exponential distribution. If the average number of arrivals is 6 per hour and the service rate is 2 every 15 minutes, how much time will elapse (in hours) from the time a customer enters the line until he/she leaves the restaurant?

Which of the following is not an assumption for the M/M/1 model with finite population source?

A post office has a single line for customers waiting for the next available postal clerk. There are two postal clerks who work at the same rate. The arrival rate of customers follows a Poisson distribution, while the service time follows an normal distribution. What type of queuing model applies here?

Assume that we are using a waiting line model to analyze the number of service technicians required to maintain machines in a factory. Our goal should be to

At an automatic car wash, cars arrive randomly at a rate of 7 every 30 minutes. The car wash takes exactly 4 minutes (this is constant). On average, how long would each driver have to wait before receiving service?

A suburban specialty restaurant has developed a single drive-thru window. Customers order, pay, and pick up their food at the same window. Arrivals follow a Poisson distribution while service times follow an exponential distribution. If the average number of arrivals is 6 per hour and the service rate is 2 every 15 minutes, what is the average number of customers waiting in line behind the person being served?

What is meant by a multichannel queuing system?

A hospital ward with only 30 beds could be modeled using a finite population model.

Little's Flow Equations are advantageous because if one characteristic of the operating system is known, the other characteristics can be easily found.

The goal of most waiting line problems is to identify the service level that minimizes service cost.

An automatic car wash is an example of a constant service time model.

The term queue "discipline" describes the