Georgia Institute Of TechnologyISYE 6644Week 5 Homework - Summer 2020_ Simulation and Modeling for Engineering and Science - ISYE-6644-OAN_O

Document Content and Description Below

6/30/2020 Week 5 Homework - Summer 2020: Simulation and Modeling for Engineering and Science - ISYE-6644-OAN/O01 https://gatech.instructure.com/courses/128642/quizzes/142123?module_item_id=833700 1/1... 7 Week 5 Homework - Summer 2020 Due Jun 19 at 11:59pm Points 19 Questions 19 Available Jun 12 at 8am - Jun 19 at 11:59pm 8 days Time Limit None This quiz was locked Jun 19 at 11:59pm. Attempt History Attempt Time Score LATEST Attempt 1 732 minutes 14 out of 19 Score for this quiz: 14 out of 19 Submitted Jun 19 at 9:39pm This attempt took 732 minutes. Question 1 1 / 1 pts (Lesson 5.13: Batch, Separate, Record.) What is the following Separate module dialog box doing?6/30/2020 Week 5 Homework - Summer 2020: Simulation and Modeling for Engineering and Science - ISYE-6644-OAN/O01 https://gatech.instructure.com/courses/128642/quizzes/142123?module_item_id=833700 2/17 a. A customer enters the block and then emerges along with an exact clone of himself. b. A customer enters the block and then emerges along with two exact clones of himself. Correct! Correct! c. Two customers enter the block and are then merged into one exiting customer. d. Three customers enter the block and are then merged into one exiting customer. (b). Question 2 0 / 1 pts (Lesson 5.14: Run Setup and Control.) Model a single-server queueing system (e.g., a barber shop) with first-in-first-out queueing priority. Let the interarrivals be i.i.d. exponential with a mean of 10 minutes, EXPO(10), and let the services be i.i.d. TRIA(5,8,11) with the units in minutes. This is just a simple Create-Process-Dispose model, with the Process block only requiring that you Seize-Delay-Release the barber. Run the system for 100 replications, each of length 1000 minutes. To handle the length/number of runs, go to Run > Setup > Replication Parameters and set “Number of Replications” = 100, “Replication Length” = 1000, and “Time Units” (immediately to the right of “Replication Length”) = “Minutes”. Moreover, make sure that the two “Initialize Between Replications” boxes are both checked.6/30/2020 Week 5 Homework - Summer 2020: Simulation and Modeling for Engineering and Science - ISYE-6644-OAN/O01 https://gatech.instructure.com/courses/128642/quizzes/142123?module_item_id=833700 3/17 100 reps can be slow. So, you will probably want to hit the “Fast-Forward” (double arrow) button to run all of those replications quickly. Or you can use the Run menu to run the thing in batch mode. In any case, the thing should just take a few seconds to execute. When all of the reps are finally over, you’ll get the Crystal Reports output. Click on “Category Overview” and scroll through the 3 or so pages of output. What is the % of time that the server is busy? a. ~8% b. ~20% c. ~50% orrect Answer orrect Answer d. ~80% ou Answered ou Answered e. ~100% (d). This follows since the traffic intensity = arrival rate/service rate = (1/10)/(1/8) = 0.8. Question 3 1 / 1 pts (Lesson 5.15: Two-Channel Manufacturing Example.) Consider the demo from class: Module05-15 - Model 04-01-ElectronicAssembly-slow.doe If you run the thing for a while, you’ll see that the rework Station gets pretty clogged up every once in a while – probably because the service times are EXPO(45) minutes. Let’s suppose that management has noticed this as well and decides to upgrade that station so that the service6/30/2020 Week 5 Homework - Summer 2020: Simulation and Modeling for Engineering and Science - ISYE-6644-OAN/O01 https://gatech.instructure.com/courses/128642/quizzes/142123?module_item_id=833700 4/17 times are now EXPO(10). Go ahead and make this change and comment on what you see. a. There are still very long lines at Rework almost all of the time. b. There are occasionally extremely long lines at Rework. Correct! Correct! c. There are occasionally short lines, but long lines are very rare. d. There is never, ever any line at Rework (c). [Show More]

Last updated: 1 year ago

Preview 1 out of 17 pages