supplement B

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Which of the following elements are NOT common to​ waiting-line problems?

A​ random-number generator

A​ _______ customer is one who enters the system and remains there until being served.

patient

What is the objective that managers are trying to attain when they decide to allow customer​ preemption?

reduce the waiting times of select customers

All of the following are reasons why waiting lines develop EXCEPT

the manager has not used a preemptive discipline.

Which of the following situations requires the use of simulation as a key assumption of the​ single-server model is​ violated?

the mean arrival rate exceeds the mean service rate

Which of the following is an assumption of the​ single-server model?

the mean service rate exceeds the mean arrival rate

If customer arrivals are generated according to a Poisson​ distribution,

then the interarrival times of the customers are exponentially distributed.

When is the customer population of a waiting line problem said to be​ infinite?

when the number of customers in the system does not affect the rate at which the population generates new customers

A​ single-server service facility had the capacity to serve 38 customers per hour on average. The average customer demand was 31 customers per hour. Determine the average waiting time in the line in minutes.

6.99

A customer service agent in a local bank has a track record of completing service every 8 minutes on​ average, according to an exponential distribution. Customers arrive seeking service at the rate of six per​ hour, according to a Poisson distribution. What percentage of time is the customer service representative busy serving​ customers?

80%

A​ single-server service facility had the capacity to serve 38 customers per hour on average. The average customer demand was 31 customers per hour. Determine the average number of customers in the system.

4.43

​_________ is a rule that allows a customer of higher priority to interrupt the service of another customer.

A preemptive discipline

Which of the following is a way that managers may attempt to affect the rate of customer​ arrivals?

A. advertising B. differential pricing C. special promotions D. All of the above.<--

Which of the following ways represents how management can improve a service​ system?

A. affect the rate of customer arrivals B. assign more than one person to a service facility C. allocate service tasks to sequential phases D. All of the above.<--

​_________ is an​ easy-to-use computer package that is simply a spreadsheet with some macros with which simple waiting line processes may be simulated.

SimQuick

By devising improved work​ methods, management is attempting to

increase the efficiency of servers.

Which of the following situations requires the use of simulation as a key assumption of the​ multiple-server model is​ violated?

customers are served based on a priority discipline

A good example of a​ single-channel, single-phase system would be

drive through car wash


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