Oladimeji_hw10

xlsm

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University of California, Los Angeles *

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403

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Industrial Engineering

Date

Feb 20, 2024

Type

xlsm

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16

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Template for Waiting Line Analysis © 1999-2002 by Armann Ingolfsson M/M/s M/M/s/s+C (M/M/s finite capacity) M/M/s with finite arrival population (finite population) M/G/1 NOTE TO 413 students: I include this worksheet so that the Queueing functions will wor This workbook calculates performance measures for the following queueing models: Click on the worksheet tab of your choice and enter the required parameters. The calculations in this workbook use some special functions that are defined in this workbook. If you wish to use these functions in another workbook, then save this workbook under another name. The functions will be available in that new workbook (even if you delete some of the worksheets).
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In turning in your homework, you are asserting the following: The answers represent your own the work. You did not copy answers from any other students, copied their files or portions thereof, took screenshots of their work, or access any answers through websites that may have obtained this homework and posted the answers. You can consult with other students in your class, but they did NOT send you their file, or a part of their file, that you then copy and paste into your own file and claim as your own work, or copy their write-up, changing a few words here and there. You did not take screenshots of their work. Similarly, if you are being asked for help, you should not email your completed file to the student(s) who asking for help. To do any of these things constitutes academic misconduct, and will result in an F for the course. TYPE YOUR NAME BELOW IN ROW 22 ATTESTING THAT THIS ASSIGNMENT REPRESENTS YOUR OWN WORK AND YOU DID NOT SEND YOUR FILE TO ANYONE ELSE
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"A" classification % 10% "C" classification % 1% $ 135.00 18.18% Hourly Salary of Buyer $ 22.00 0.10 Lead time (in days) 1 Days in the year (assume 365) 365 Annual Holding cost for each item category Annual Holding cost for each item category Time needed to place each order (IN HOURS)
Item Name/Description Acetaminophen supp. 3133 $0.43 $1,347.19 Fentanyl inj. 6460 $0.35 $2,261.00 Oxymetazoline nose spr 1248 $1.87 $2,333.76 Sensorcaine® inj. 1799 $1.45 $2,608.55 Albuterol inh. nebule 28800 $0.11 $3,168.00 Acetaminophen oral liq. 11063 $0.29 $3,208.27 Ketorolac inj. 3710 $0.98 $3,635.80 Morphine inj. 10750 $0.47 $5,052.50 Ampicillin inj. 4810 $1.26 $6,060.60 Heparin flush syringe 4140 $1.66 $6,872.40 Ciprodex otic drops 1632 $5 $7,344.00 Ibuprofen oral susp. 12400 $0.65 $8,060.00 Morphine carpuject inj. 12,500 $0.78 $9,750.00 Methotrexate liq. Inj. 358 $34 $12,172.00 Ifex® inj. 126 $160 $20,160.00 Lorazepam inj. 22225 $0.94 $20,891.50 Ambisome® inj. 497 $51.62 $25,655.14 Winrho® inj. 46 $635 $29,210.00 Rituxan® inj. 74 $447 $33,078.00 Thymoglobulin inj. 100 $369 $36,900.00 Cefotaxime inj. syringe 12,996 $3.02 $39,247.92 Suprane® inhalant 408 $106 $43,248.00 Infuvite inj. 846 $52 $43,585.92 Vfend® inj 479 $91 $43,589.00 Mylotarg® inj. 21 $2,215 $46,515.00 Prevnar® inj 805 $63 $50,715.00 Neupogen® inj. 290 $184 $53,360.00 Synagis® inj 102 $600 $61,149.00 Oncaspar® inj. 55 $1,466 $80,630.00 Aldurazyme® inj. 138 $649 $89,562.00 Lupron® Depot inj. 82 $1,162 $95,284.00 Rituxan® inj. 46 $2,234 $102,764.00 Thrombin® top. Inj 504 $252 $127,008.00 Novoseven inj. 89 $1,697 $151,033.00 Curosurf® ETT soln 345 $465 $160,425.00 Polygam® inj. 400 $406 $162,400.00 Gammunex® inj 176 $1,020 $179,520.00 Cytogam® inj 243 $743 $180,549.00 Ultane® inhalant 1134 $213 $241,542.00 Zofran® inj. 24060 $17 $409,020.00 Remicade® inj. 828 $543 $449,604.00 Botox® inj. 1164 $457 $531,948.00 TOTAL $3,582,467.55 Demand (D) Contract price/unit Total product cost % of Total Product Cost ABC Classification
TOTAL Hold costs per year Annual Holding Cost/unit (H) Order cost (S) Q=√(2DS) / H ROP=Demand per day times Lead Time Annual Inventory Management Cost Q/2*H + D/Q*S
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Investment Cost (Q times contract price per unit)
M/M/s Queueing Calculations Basic Parameters COST Parameters (Cos Arrival Rate per hour Service Rate per hour Number of Servers Time Unit hour Basic Performance Measures Utilization #VALUE! P(0), probability that the system is empty #VALUE! Lq, expected number in queue #VALUE! L, expected number in system #VALUE! Wq, expected time in queue #VALUE! hours W, expected total time in system #VALUE! hours Probability that customer waits #VALUE! Advanced Parameters Threshold time 0.016667 hours Desired service level 95% Advanced Performance Measures Current service level #VALUE! #VALUE! Busy Server c b Idle Server c i Customer Waiting c w Customer being Served c s Number of servers required to achieve desired service level Note: this worksheet uses some that are defined in this workboo
HINT: Pages 494-496 of the Analytics text will be helpful CAPACITY ANALYSIS and COSTS st/Hour) # of staff = 1 2 3 Customer Waiting Cost Customer being Served Cost Total Cost # in system # waiting Time in system Time waiting Utilization Probability system is empty Busy Server Cost C B Idle Server Cost C I e special functions ok. Summarize your recommendation regarding the number of staff and your rational number. Create a chart that shows what you think is the key argument of your recommendation, and refer to it in your summary.
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4 le for that NOTE for the columns of 1,2, and 3 servers: After completing the calculations or copying the relevant data into each cell, do a COPY->PASTE SPECIAL->VALUES on that column of data. Otherwise, the data will change as you change the number of servers in cell B6. Leave all your formulas in the cells for the column of 4 servers so that I can check your programming logic.
month month_num visits Jan-17 1 464 Feb-17 2 439 Mar-17 3 463 Apr-17 4 430 May-17 5 462 Jun-17 6 495 Jul-17 7 695 Aug-17 8 618 Sep-17 9 517 Oct-17 10 540 Nov-17 11 474 Dec-17 12 495 Jan-18 13 589 Feb-18 14 588 Mar-18 15 667 Apr-18 16 656 May-18 17 644 Jun-18 18 588 Jul-18 19 1178 Aug-18 20 1029 Sep-18 21 840 Oct-18 22 732 Nov-18 23 780 Dec-18 24 875 Jan-19 25 834 Feb-19 26 952 Mar-19 27 785 Apr-19 28 701 May-19 29 731 Jun-19 30 786 Jul-19 31 1112 Aug-19 32 1105 Sep-19 33 814 Oct-19 34 848 Nov-19 35 774 Dec-19 36 842 Jan-20 ??? Conduct a regression analysis using the 3 years of data, a regression on a new worksheet, and name the worksheet assignment assumes that it is currently the end of Decem Question 1: Is there trend in your data? Type YES or N Question 2: Using a 12 month moving average, what woul Put your calculation in cell R14. Question 3: Based on your regressions results for estimati for the month of Jan 2020? This calculation does not dep Put your calculation in cell R17, clicking on the appropriat Question 4: Suppose a pandemic hit your organization's c regarding forecast error in February if you use a 12 month
and then answer the following questions below. Put the t "regression" (without the quotation marks). This mber in 2019. NO, and provide a rationale for your answer using your regression results in your answer. ld the prediction for the number of visits be for the month of Jan 2020? ting trend, what is your prediction for the number of visits pend on your answer in cell R14. It is a separate analysis. te cell of your regression results on your regression worksheet. community at the very end of January 2020. What might you expect h moving average to predict February's 2020 visit demand?
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X1 Y1 X2 Y2 X3 cost per nurse per shift # nurses DAILY COST shift 1 constraint shift 2 constraint shift 3 constraint 10% overtime constraint Results X1 Y1 X2 Y2 X3 Including 10% constraint Excluding 10% constraint # Shift 1 who don't work overtime # Shift 1 who do work overtime # Shift 2 who don't work overtime # Shift 2 who do work overtime # Shift 3 who don't work overtime
Y3 RHS # used Y3 Total Daily Cost Difference 365 days/yr # Shift 3 who do work overtime Annual Cost Difference
According to an article in USA Today, the US discards more kidneys for transplant than France, and has Estimates are that about 100,000 people are waiting for a kidney transplant. About 23,500 kidney transplants are performed per year. The USA Today article said that the US discards about 3,500 kidneys per year that become available for (https://www.usatoday.com/story/news/nation/2019/08/29/us-throws-away-3-500-donated-kidneys- QUESTION 1: Assuming no one dies waiting for a kidney, how long do people wait, on average, for a k Use Little's Law to solve this question by completing cells O13, P13, and Q13. Remember that knowing any two of the parameters provides the information you need solve the thir QUESTION 2: Suppose that 90% of the kidneys currently discarded annually could instead also be used. Assuming no one dies waiting for a kidney, how long would people wait, on average, for a kidney transpl Use Little's Law to solve this question by completing cells O19, P19, and Q19.
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Make sure that one of the cells has a formula in it! L l W Make sure that one of the cells has a formula in it! L l W lower quality outcomes. r transplant for a variety of reasons. -per-year-study-says-heres-why/2139644001/) kidney transplant? rd one. lant with this additional supply?