OPERATION MANAGEMENT
2nd Edition
ISBN: 9781260242423
Author: CACHON
Publisher: MCG
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Chapter 16, Problem 5PA
Summary Introduction
To determine: The line that best depicts the relationship between utilization and waiting time.
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In queuing theory and modeling, if 1/μ represents mean service time. Whatdoes μ represent?
Service rateInterarrival time Arrival rate
None
Which of the following lines in the graphs in Figure 16.16 best depicts the relationship between utilization and waiting time in a queuing system? (Assume the utilizations depicted are less than 100 percent.)a. A b. B c. C d. D e. E f. F
In waiting line management, system performance measures include which of the following: I. an arriving customer will have to wait. II. The average
number of customers waiting. III. The average time customers spend in the system. IV The probability that the server is busy.
Select one:
a. II, III & IV
b. I, II & III
c. I, II & IV
d. I, III & IV
convert inputs into outputs; they are at the core of operations management.
Select one:
a. processes
b. decisions
C. resources
d. products
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Chapter 16 Solutions
OPERATION MANAGEMENT
Ch. 16 - Prob. 1CQCh. 16 - Prob. 2CQCh. 16 - Prob. 3CQCh. 16 - Prob. 4CQCh. 16 - Which of the following best reflects pooling...Ch. 16 - Prob. 6CQCh. 16 - Prob. 7CQCh. 16 - Prob. 1PACh. 16 - Prob. 2PACh. 16 - Prob. 3PA
Ch. 16 - Prob. 4PACh. 16 - Prob. 5PACh. 16 - Prob. 6PACh. 16 - Prob. 7PACh. 16 - Prob. 8PACh. 16 - Prob. 11PACh. 16 - Prob. 12PACh. 16 - Prob. 13PACh. 16 - Prob. 14PACh. 16 - Prob. 15PACh. 16 - Prob. 16PACh. 16 - Prob. 17PACh. 16 - Prob. 18PACh. 16 - Prob. 19PACh. 16 - Prob. 20PACh. 16 - Prob. 21PACh. 16 - Prob. 22PA
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- What effect will decreasing the variability of the service rate have on the performance of the queuing system (all else being the same)? reduce customer average waiting time in the system cannot be determined without additional information while more customers, they arrive at separate times & create a shorter queue the queue moves faster thanks to a faster arrival ratearrow_forwardPlease do not give solution in image format thanku 1. In a queueing system, customers arrive once every 4 seconds (standard deviation = 4) and services take 3 seconds (standard deviation = 5.1). What is the average time a customer wiill spend in the system (in seconds)?arrow_forwardWhich of the following is not a valid queuing model based on the Kendall notation? Select one: A. M/M/0 B. M/M/3 C. D/M/1 D. G/D/1- E. D/D/2arrow_forward
- The two basic modeling approaches for queuing systems are optimization and simulation. a) True b) Falsearrow_forwardPlease do not give solution in image format thanku A bank has an average of 10 customers per hour arriving into the system, and it takes an average of 30 minutes for the clerk to complete a transaction with a customer. What is the average length of the queue in the bank? And A store open 24 hours per day is interested in determining store traffic. It found that customers arrive uniformly at the rate of 10 customers per hour. The store has a single worker to process customers. The worker takes an average of 5 minutes to process a customer. If we assume that every customer must be processed, what is the average number of customers in the store?arrow_forwardIn a queueing system, customers arrive once every 5 minutes (standard deviation = 7) and services take 3 minutes (standard deviation = 6.8). (Do not round intermediate calculations. Round your answer to three decimal places.) What is the average time a customer will spend in the system (in minutes)? minutesarrow_forward
- In a queueing system, customers arrive once every 3 hours (standard deviation = 4) and services take 2 hours (standard devlation = 6.2). (Do not round intermediate calculations. Round your answer to three decimal places.) What is the average time a customer will spend in the system (in hours)? hoursarrow_forwardIn modeling a waiting line problem, 1/ μ and 1/ λ represent the mean values of: a. Arrival time and service rate respectively (i.e. in that order). b. Inter-arrival time and service time respectively. c. Service time and inter-arrival time respectively. d. Wait time and queue time respectively.arrow_forward7. What is the difference between Balking and Reneging? 8. Which of the following waiting lines do you prefer and why? Single-Queue, Multiple-Channel System Structure (Fig 5.8 in text) Multiple-Queue, Multiple-Channel System Structure (Fig 5.9 in text) 9. An easy way to understand Queuing Model formulas is to understand that L refers to Number of items while W refers to time. q refers to the queue and s refers to the system. So Lq refers to the number of units in the queue (waiting line). Ls refers to the number of items in the system (queue and service). Write out the formulas for the following: a. Average Wait time in the Queue b. Average Wait time in the System c. Average number of units in the Queue d. Average number of units in the System e. System utilization f. Probability of zero customers in the systemarrow_forward
- Consider a base case where a customer arrives every 40 seconds and the Customer Service Champion can handle 120 customers per hour. There are two Food Champions, each capable of handling 100 orders per hour How long should it take to be served by the restaurant (from the time a customer enters the kiosk queue until her food is delivered)? Use queuing models to estimate this.arrow_forwardIn a waiting line situation, arrivals occur at a rate of 2 per minute, and the service times average 18 seconds. Assume the Poisson and exponential distributions. a. What is λ? b. What is μ? c. Find probability of no units in the system. d. Find average number of units in the system. e. Find average time in the waiting line. f. Find average time in the system. g. Find probability that there is one person waiting. h. Find probability an arrival will have to wait. Please show a corrct solution and answer. Thank you.arrow_forwardIn a queueing system, customers arrive once every 4 seconds (standard deviation = 4) and services take 2 seconds (standard deviation = 4.3). (Do not round intermediate calculations. Round your answer to three decimal places.) What is the average time a customer will spend in the queue (in seconds)? secondsarrow_forward
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