Exam 26: Simulation

On a good day a distributor will have $5,000 of inventory sales;on a medium day sales of $3,000;on a bad day only $1,000.Suppose you have data on this distributor's sales for the past 100 days and that she had 25 good days,50 medium days and 25 bad days.If you draw a random number to represent her sales for the first simulated day and that number were 89,which of the following were her simulated sales? (Note: arrange the random number interval probability distribution so it starts with a good day at 00 followed by a medium day,etc.

What are the major phases of a simulation study?

Which of the following are viewed as advantages of simulation in operations management decision making?

The first step in the major phase "constructing the simulation model" is to determine which properties of the system should be fixed (called parameters)and which should be allowed to assume different values (called variables)throughout the simulation run.

The run length of a simulation depends on the purpose of the simulation.

An empirical probability distribution used in a simulation study is one derived from a standard mathematical distribution like the normal or Poisson probability distributions.

In modeling a simulation random numbers from 00 to 99 are assigned with the intervals determined from frequency distributions for each behavior occurrence.If there are two behaviors,X and Y,out of 50 tallies,on behavior X you record 20 tallies and on behavior Y you record 30 tallies.Which of the following is a correct random number interval for behavior X?

The technique of simulation has made significant progress since 2003 when a set of simulation standards was adopted by the International Society for Simulation (ISS)an industry organization set up in Japan linking manufacturing firms with organizations providing products for computer games.

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

Being able to permit interactive debugging of a model so the user can trace flows through the model and more easily find errors is considered a desirable feature of simulation software systems.

In the context of a simulation study,which of the following refers to testing the computer simulation program to ensure that the simulation is correct?

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

In order to develop the random number intervals for a simulation study we need to know the probability distributions in the situation to be simulated.

A simulation model does not have to be validated to provide accurate information.

In a simulation study,after defining the problem and constructing the simulation model,the immediate next major phase of the study is which of the following?

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

On a good day,Joe will sell an average of $50,000 of product.On a medium day he will sell $25,000 and on a bad day he will sell only $10,000.Suppose you observe Joe's business for 100 days and,during that time,he had 15 good days,40 medium days and 45 bad days.If you draw a random number to represent his sales for the first simulated day and that number were 47,what kind of simulated day did Joe's business have? (Note: arrange the random number interval probability distribution so it starts with a good day at 00 followed by a medium day,etc. )

What is the most common approach to determining the appropriate run length of a simulation?

Special-Purpose Simulation Software is specially built to run specific applications that have provisions in manufacturing models to allow for specifying the number of work centers,their descriptions,arrival rates and even batch sizes.

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?