Ee 264. Problem 4-10 and 4-11 (Static)Owners of a local restaurant are concerned about their ability to provide quality service as they continue to grow and attract morecustomers. They have collected data from Friday and Saturday nights, their busiest times of the week. During these time periods,about 75 customers arrive per hour for service. Given the number of tables and chairs, and the typical time it takes to serve acustomer, the owners estimate they can serve, on average, about 100 customers per hour. Use Exhibit 4.6.Furthermore, the owners anticipate that in one year their demand will double as long as they can provide good service to theircustomers.a. Currently, during these nights, are they in the zone of service, the critical zone, or the zone of nonservice?ⒸZone of serviceCritical zoneZone of nonserviceb. Next year, after demand doubles, what must the service capacity increase to (at minimum) to stay out of the critical zone? (Round upyour answer to the next nearest whole number.)Answer is complete but not entirely correct.114 customers per hourService capacity must increase to

To find: (a) The zone of the utilization of the system. (b) The service capacity increase to stay…

Answered: Problem 4-10 and 4-11 (Static) Owners…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter12: Queueing Models

Section: Chapter Questions

Problem 59P

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At the beginning of each week, a machine is in one of four conditions: 1 = excellent; 2 = good; 3 = average; 4 = bad. The weekly revenue earned by a machine in state 1, 2, 3, or 4 is 100, 90, 50, or 10, respectively. After observing the condition of the machine at the beginning of the week, the company has the option, for a cost of 200, of instantaneously replacing the machine with an excellent machine. The quality of the machine deteriorates over time, as shown in the file P10 41.xlsx. Four maintenance policies are under consideration: Policy 1: Never replace a machine. Policy 2: Immediately replace a bad machine. Policy 3: Immediately replace a bad or average machine. Policy 4: Immediately replace a bad, average, or good machine. Simulate each of these policies for 50 weeks (using at least 250 iterations each) to determine the policy that maximizes expected weekly profit. Assume that the machine at the beginning of week 1 is excellent.
Scenario 4 Sharon Gillespie, a new buyer at Visionex, Inc., was reviewing quotations for a tooling contract submitted by four suppliers. She was evaluating the quotes based on price, target quality levels, and delivery lead time promises. As she was working, her manager, Dave Cox, entered her office. He asked how everything was progressing and if she needed any help. She mentioned she was reviewing quotations from suppliers for a tooling contract. Dave asked who the interested suppliers were and if she had made a decision. Sharon indicated that one supplier, Apex, appeared to fit exactly the requirements Visionex had specified in the proposal. Dave told her to keep up the good work. Later that day Dave again visited Sharons office. He stated that he had done some research on the suppliers and felt that another supplier, Micron, appeared to have the best track record with Visionex. He pointed out that Sharons first choice was a new supplier to Visionex and there was some risk involved with that choice. Dave indicated that it would please him greatly if she selected Micron for the contract. The next day Sharon was having lunch with another buyer, Mark Smith. She mentioned the conversation with Dave and said she honestly felt that Apex was the best choice. When Mark asked Sharon who Dave preferred, she answered, Micron. At that point Mark rolled his eyes and shook his head. Sharon asked what the body language was all about. Mark replied, Look, I know youre new but you should know this. I heard last week that Daves brother-in-law is a new part owner of Micron. I was wondering how soon it would be before he started steering business to that company. He is not the straightest character. Sharon was shocked. After a few moments, she announced that her original choice was still the best selection. At that point Mark reminded Sharon that she was replacing a terminated buyer who did not go along with one of Daves previous preferred suppliers. What should Sharon do in this situation?
Scenario 4 Sharon Gillespie, a new buyer at Visionex, Inc., was reviewing quotations for a tooling contract submitted by four suppliers. She was evaluating the quotes based on price, target quality levels, and delivery lead time promises. As she was working, her manager, Dave Cox, entered her office. He asked how everything was progressing and if she needed any help. She mentioned she was reviewing quotations from suppliers for a tooling contract. Dave asked who the interested suppliers were and if she had made a decision. Sharon indicated that one supplier, Apex, appeared to fit exactly the requirements Visionex had specified in the proposal. Dave told her to keep up the good work. Later that day Dave again visited Sharons office. He stated that he had done some research on the suppliers and felt that another supplier, Micron, appeared to have the best track record with Visionex. He pointed out that Sharons first choice was a new supplier to Visionex and there was some risk involved with that choice. Dave indicated that it would please him greatly if she selected Micron for the contract. The next day Sharon was having lunch with another buyer, Mark Smith. She mentioned the conversation with Dave and said she honestly felt that Apex was the best choice. When Mark asked Sharon who Dave preferred, she answered, Micron. At that point Mark rolled his eyes and shook his head. Sharon asked what the body language was all about. Mark replied, Look, I know youre new but you should know this. I heard last week that Daves brother-in-law is a new part owner of Micron. I was wondering how soon it would be before he started steering business to that company. He is not the straightest character. Sharon was shocked. After a few moments, she announced that her original choice was still the best selection. At that point Mark reminded Sharon that she was replacing a terminated buyer who did not go along with one of Daves previous preferred suppliers. Ethical decisions that affect a buyers ethical perspective usually involve the organizational environment, cultural environment, personal environment, and industry environment. Analyze this scenario using these four variables.
Scenario 4 Sharon Gillespie, a new buyer at Visionex, Inc., was reviewing quotations for a tooling contract submitted by four suppliers. She was evaluating the quotes based on price, target quality levels, and delivery lead time promises. As she was working, her manager, Dave Cox, entered her office. He asked how everything was progressing and if she needed any help. She mentioned she was reviewing quotations from suppliers for a tooling contract. Dave asked who the interested suppliers were and if she had made a decision. Sharon indicated that one supplier, Apex, appeared to fit exactly the requirements Visionex had specified in the proposal. Dave told her to keep up the good work. Later that day Dave again visited Sharons office. He stated that he had done some research on the suppliers and felt that another supplier, Micron, appeared to have the best track record with Visionex. He pointed out that Sharons first choice was a new supplier to Visionex and there was some risk involved with that choice. Dave indicated that it would please him greatly if she selected Micron for the contract. The next day Sharon was having lunch with another buyer, Mark Smith. She mentioned the conversation with Dave and said she honestly felt that Apex was the best choice. When Mark asked Sharon who Dave preferred, she answered, Micron. At that point Mark rolled his eyes and shook his head. Sharon asked what the body language was all about. Mark replied, Look, I know youre new but you should know this. I heard last week that Daves brother-in-law is a new part owner of Micron. I was wondering how soon it would be before he started steering business to that company. He is not the straightest character. Sharon was shocked. After a few moments, she announced that her original choice was still the best selection. At that point Mark reminded Sharon that she was replacing a terminated buyer who did not go along with one of Daves previous preferred suppliers. What does the Institute of Supply Management code of ethics say about financial conflicts of interest?
Owners of a local restaurant are concerned about their ability to provide quality service as they continue to grow and attract more customers. They have collected data from Friday and Saturday nights, their busiest times of the week. During these time periods about 75 customers arrive per hour for service. Given the number of tables and chairs, and the typical time it takes to serve a customer, the owners estimate they can serve on average about 100 customers per hour. During these nights, are they in the zone of service, the critical zone, or the zone of nonservice?
The following data for 2021 are available for Canlubang AutomotiveCompany which manufactures and sells a single automotive product line.Unit selling price = 4Unit variable cost = 20Total fixed cost = 200,000a.) What is the break-even point in units for the current year?b.) Prepare a break-even chart for the operation in 2021 intervals of 5,000 units from 5,000to 30,000 units (show complete solution)
Owners of a local restaurant are concerned about their ability to provide quality service as they continue to grow and attract more customers. They have collected data from Friday and Saturday nights, their busiest times of the week. During these time periods about 75 customers arrive per hour for service. Given number of tables and chairs, and the typical time it takes to serve a customer, they the owners estimate they can serve on average about 100 customers per hour. Owners of the restaurant anticipates that, in one year their demand will double as long as they can provide good service to their customers. How much will they have to increase their service capacity to in order to stay out of the critical zone? (Roundup your answer to the next whole number.)
The manager of a local restaurant “RRR” asks you to improve the existing “online food ordering system” with an additional function. It is desired that the new function informs the customer about the approximate time needed to deliver the foods after customer submits the order via the website of “RRR”. If you plan to prepare an online questionnaire for the customers that they may fill on theweb site of “RRR” Write 2 questions that you may use nominal scale and 2 questions that you may useinterval scale.
The sales manager of STC Telecommunication Company, conducts interviews of the sales representatives. During the interview, these questions were asked from the sales representatives which are related to the performance of their job: the percentage of the time spent in making presentations to new potential customers, telephone conversation with current customers, time spent working on the computer, and engaging in on- the job activities. What potential sources of error might be associated with the manager’s line of questioning specifically on the different tasks performed by the sales representatives?
A ready-to-drink juice manufacturing Plant had recorded a total annual production of 11,124,095.87 L of product with an annual water usage of 108,009 cu.m for the year 2019. In the year 2020, the Plant had produced 9,720,885.51 L using 82,103 cu.m of water. The Plant expresses its water use efficiency (WUE) in terms of volume of water used/volume of product produced and the goal is to achieve a WUE of 9.5. a) What is the Plant's WUE in the year 2019? b) What is the Plant's WUE in the year 2020?
TemaTire Services (TTS) decided to hire a new mechanic to handle all tire changes for customers ordering a new set of tires. Two mechanics have been shortlisted for the job. One mechanic has limited experience, can be hired for GH¢14 per hour, and can service an average of three customers per hour. The other mechanic has several years of experience, can service an average of four customers per hour, but must be paid GH¢20 per hour. Historical data shows that customers arrive at the TTS garage at the rate of twocustomers per hour. 5a)Assuming Poisson arrivals and exponential service times, compute the following for eachmechanic:(i).Average number of customers waiting(ii).Average number of customers in the system(iii).The average time spent in the queue(iv).The average time spent in the system(v).The probability that no queues would build up(vi).The probability that exactly two customers are waiting at any given time.(vii).The probability that up to two customers are waiting at any…
TemaTire Services (TTS) decided to hire a new mechanic to handle all tire changes for customers ordering a new set of tires. Two mechanics have been shortlisted for the job. One mechanic has limited experience, can be hired for GH¢14 per hour, and can service an average of three customers per hour. The other mechanic has several years of experience, can service an average of four customers per hour, but must be paid GH¢20 per hour. Historical data shows that customers arrive at the TTS garage at the rate of twocustomers per hour. 5a)Assuming Poisson arrivals and exponential service times, compute the following for eachmechanic:(i).Average number of customers waiting(ii).Average number of customers in the system(iii).The average time spent in the queue(iv).The average time spent in the system(v).The probability that no queues would build up(vi).The probability that exactly two customers are waiting at any given time.(vii).The probability that up to two customers are waiting at any…

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