Exam 18: Waiting Line Models
Exam 1: Introduction to Operations Management132 Questions
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Exam 3: Product Design and Process Selection128 Questions
Exam 4: E-Commerce and Supply Chain Management139 Questions
Exam 5: Total Quality Management141 Questions
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Exam 8: Forecasting138 Questions
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Exam 10: Facility Layout139 Questions
Exam 11: Work System Design132 Questions
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Exam 15: Scheduling127 Questions
Exam 16: Project Management134 Questions
Exam 16: Spreadsheet Modeling: an Introduction137 Questions
Exam 17: Spreadsheet Modeling: an Introduction133 Questions
Exam 18: Waiting Line Models132 Questions
Exam 19: Master Scheduling and Rough-Cut Capacity Planning69 Questions
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Consider a single-line, single-server waiting line system. The arrival rate λ is 80 people per hour, and the service rate μ is 120 people per hour. What is the probability of having 3 or more units in the system?
(Multiple Choice)
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_________ _________ are used to gain useful information about waiting line systems.
(Short Answer)
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A short waiting line may result from all of the following except:
(Multiple Choice)
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Which of the following is least likely to be considered an infinite customer population?
(Multiple Choice)
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For a single-line, multi-server, single-phase waiting line system, where represents the mean arrival rate of customers and represents the mean service rate for each of s identical servers, what is the formula for the average utilization of the system?
(Multiple Choice)
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A customer population is called _______________ when the number of potential new customers is not affected by the number of customers already in the system.
(Multiple Choice)
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Discrete-event simulation of products allows the customer to define the system, arrival, and service patterns.
(True/False)
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For a single-server, single-line, single-phase waiting line system, where represents the mean arrival rate of customers and represents the mean service rate, what is the formula for the average time spent waiting in line?
(Multiple Choice)
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In waiting line terminology, what is another name for server?
(Multiple Choice)
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Visitors to a major amusement park would be considered a finite customer population.
(True/False)
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Which of the following waiting line systems best describes a grocery store, where each register has its own line and server?
(Multiple Choice)
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Changing the demand pattern by offering off-peak discounts represents an effective way to try to manage long waiting lines.
(True/False)
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Which of the following is least likely to be considered a finite customer population?
(Multiple Choice)
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Consider a single-line, single-server waiting line system. Suppose that customers arrive according to a Poisson distribution at an average rate of 100 per hour. The manager does not want customers to be in the system for longer than 12 minutes. How fast does the average (exponentially distributed)service time need to be in minutes in order to keep the manager satisfied?
(Short Answer)
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Customers generally consider which of the following priority rules to be the fairest?
(Multiple Choice)
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