Exam 21: Simulation

When using Excel for simulation,it is important to freeze the random numbers used in order to compare the effectiveness of different policies.To do this,you must select the cells holding the random numbers with the mouse,click Edit/Copy at the top of the spreadsheet,and:

Scenario E.1 SimQuick is being used to simulate the following bank process: Customer arrivals at the Entrance Door of the bank with an average time between arrivals of 2.5 minutes.The Line Buffer holds 6 customers.If a customer arrives and the buffer line is filled,the customer leaves.The Work Station Teller's processing time per customer is normally distributed,with a mean of 3.0 minutes and a standard deviation of 0.5 minutes.The Served Customer Buffer in the flow chart is used to count the number of customers processed during the period simulated.A 2-hour period was simulated. The SimQuick simulation is run,and the results are as follows: -Use the information in Scenario E.1.Approximately how many total customers arrived during the 2-hour period simulated?

A number that has the same probability of being selected as any other number is a(n)________.

Decision variables are random events that the decision maker cannot control.

Simulation models are:

________ are random events that the decision maker cannot control.

How can random numbers be generated?

What is meant by time compression in a simulation model?

A number that has the same probability of being selected as any other is called a(n):

Simulation is the process of reproducing the behavior of a system using a model that describes the processes of the system.

The manager of a branch bank wants to build a simulation model of the lobby operation to reduce the waiting time of her customers.The number of customers arriving at any point of time is an example of a(n):

Refer to the bank process model.The bank's process improvement group has developed a number of process and technology changes that will improve the Teller's process rate per customer from a mean of 3.0 minutes to 2.5 minutes (standard deviation remains at 0.5 minutes).The Bank Manager wants to determine if the improved process rate,along with the special promotion for new customers,will allow the "arrive and immediately leave" rate and average customer wait time in line achieved in Problem #45 to still be met (12% balk rate,9.95 minutes in line).If so,the manager will implement the process and technology changes and allow the special promotion to proceed.Using SimQuick,estimate the new arrive and immediately leave rate and average time in line.What decision should the manager make?

Which of the following statements about SimQuick is TRUE?

Using a simulation model to gather a year of operating data in a few minutes is known as:

Big Bills McGee carries no paper money less than $10 in his wallet,preferring to have a ready supply of $10,$20,$50,and $100 denominations at all times.He is concerned about pickpockets and has an amusing anecdote about thwarting a pickpocket on the Athens subway he likes to tell.His business associate conducts a Monte Carlo simulation for Big Bills using POM for Windows software and prints out the results copied below.Using this output,provide your interpretation for Big Bills pickpocket scenario.

Scenario E.1 SimQuick is being used to simulate the following bank process: Customer arrivals at the Entrance Door of the bank with an average time between arrivals of 2.5 minutes.The Line Buffer holds 6 customers.If a customer arrives and the buffer line is filled,the customer leaves.The Work Station Teller's processing time per customer is normally distributed,with a mean of 3.0 minutes and a standard deviation of 0.5 minutes.The Served Customer Buffer in the flow chart is used to count the number of customers processed during the period simulated.A 2-hour period was simulated. The SimQuick simulation is run,and the results are as follows: -Use the information in Scenario E.1.Approximately how much time did the average customer who entered the system spend waiting in line?

A patient's interminable wait for the first available physician is modeled in SimQuick using a(n):

Steady state occurs when the simulation is repeated over enough time that the average results for performance measures remain constant.

Which one of the following relationships is correct?

The arrival of customers at a lemonade stand is modeled in SimQuick using a(n):