Principles of Operations Management: Sustainability and Supply Chain Management (10th Edition)
10th Edition
ISBN: 9780134181981
Author: Jay Heizer, Barry Render, Chuck Munson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 15, Problem 3P
Summary Introduction
To determine: The optimal assignment of taxis to customers.
Introduction: Assignment method is one of the method available in process of optimization. Here, the jobs would be assigned to every available resources.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
QUESTION #4
Four delivery trucks are in a queue at a Tool Company with
only one service bay. The trucks are identified by the sequence
in which they arrived at the Company. Assume the time is
10:00 a.m. The table shows the times necessary to unload each
vehicle and the periods when the commodities they contain
are expected in the factory.
Determine the schedules that result for each of the rules SPE,
CR EDD, and FSFC. In each case compute the average tardiness,
the number of tardy jobs, and mean flow time.
Truck
1
2
3
4
5
Unloading Time
(minutes)
23
16
39
12
30
Time Material
is Due
10:15 AM
10:40 AM
10:55 AM
10:30 AM
10:40 AM
Question (13-15):
A Car service station owns one washing machine that serves 3.5 cars every 45 minutes.
Moreover, 2.5 customers arrive at the station every 40 minutes. Answer the following
questions:
13. Determine the expected waiting time in the car service:
D
D
3.021
D
4.621
с
14. Determine the expected number of customers in the queue:
0.9031
C
1.0909
C
3.872
B
0.3001
B
0.875
B
3.287
15. Determine the probability that customers are waiting more than 45 minutes in the
queue:
A
0.4041
A
1.256
A
4.099
0.5981
Question 6. Transit Privilege/Stop-Off Service
You operate a major distribution center in Seattle, WA. A customer in Boise, ID., a customer in Salt Lake City,
UT. a customer in Denver, CO., and a customer in Oklahoma City, OK. have all ordered a large amount of
material from you. It will require that you ship 11,000 pounds of material from your Seattle DC to Boise,
10,000 pounds of material to Salt Lake City, 8,000 pounds to Denver, and 13,000 to Oklahoma City. Using the
following rates, determine the cost of three separate shipments vs the cost of a single combined shipment using
a stop-off privilege. Which option is preferable?
Rates per Ib.
LTL
Min. Weight for TL
TL
$0.22
$0.251
$0.288
$0.32
$0.10
$0.140
$0.183
$0.20
40,000 lbs.
40,000 lbs.
40,000 lbs.
40,000 lbs
Seattle to Boise
Seattle to Salt Lake City
Seattle to Denver
Seattle to Oklahoma City
Stop-off privilege is $650 per stop. There is no stop-off charge for the last stop.
Option 1: Cost of 4 separate shipments:
Option 2:…
Chapter 15 Solutions
Principles of Operations Management: Sustainability and Supply Chain Management (10th Edition)
Ch. 15 - Prob. 1EDCh. 15 - Prob. 1DQCh. 15 - Prob. 2DQCh. 15 - Prob. 3DQCh. 15 - Prob. 4DQCh. 15 - Prob. 5DQCh. 15 - Prob. 6DQCh. 15 - Prob. 7DQCh. 15 - Prob. 8DQCh. 15 - Prob. 9DQ
Ch. 15 - Prob. 10DQCh. 15 - Prob. 11DQCh. 15 - Prob. 12DQCh. 15 - Prob. 13DQCh. 15 - Prob. 1PCh. 15 - Prob. 2PCh. 15 - Prob. 3PCh. 15 - Prob. 4PCh. 15 - Prob. 5PCh. 15 - Prob. 6PCh. 15 - Prob. 7PCh. 15 - Prob. 8PCh. 15 - Prob. 9PCh. 15 - Prob. 10PCh. 15 - Prob. 15PCh. 15 - Prob. 16PCh. 15 - Prob. 17PCh. 15 - Prob. 18PCh. 15 - Prob. 19PCh. 15 - Prob. 20PCh. 15 - Prob. 21PCh. 15 - Prob. 22PCh. 15 - Prob. 23PCh. 15 - Daniels Barber Shop at Newark Airport is open 7...Ch. 15 - Given the following demand for waiters and...Ch. 15 - Prob. 1CSCh. 15 - Prob. 2CSCh. 15 - Prob. 3CSCh. 15 - Prob. 4CSCh. 15 - Prob. 1.1VCCh. 15 - Prob. 1.2VCCh. 15 - Prob. 1.3VCCh. 15 - Prob. 2.1VCCh. 15 - Prob. 2.2VCCh. 15 - Why is seniority important in scheduling servers?Ch. 15 - Prob. 2.4VC
Knowledge Booster
Learn more about
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
- Question 8.1 The computer lab at State University has a help desk to assist students working on computer spreadsheet assignments. The students patiently form a single line in front of the desk to wait for help. Students are served based on a first-come, first-served priority rule. Students arrive at the help desk at the rate of 4 every 10 minutes. The average service time is 2 minutes. The Poisson distribution is appropriate for the arrival rate and service times are exponentially distributed.arrow_forwardQuestion 4 Jo-Jo Inc is a manufacturing firm that produces soap. The company is owned by two brothers, Donald and David Schroeder, and has one plant. The company has experienced significant growth in demand, and the current plant does not appear to have sufficient capacity to meet demand. The company has decided to build a new plant to meet the additional capacity. However, the brothers must decide whether to construct a small, medium, or large plant. The brothers hired a forccasting consultant to predict demand. The consultant's report indicates that there is a 25 percent chance that the demand will be low and a 75 percent chance that the demand will be high. If Jo-Jo Inc. builds a small facility and the demand indeed turns out to be low, the consultant expects net profit of $40 million. If the firm builds a small plant and the demand turns out to be high, then the firm has two options: (1) subcontract or (2) expand the facility. If Jo-Jo Inc. decides to subcontract, the expected net…arrow_forwarddo fast.arrow_forward
- Question No.5: The local Division of Motor Vehicles (DMV) is concerned with its waiting line system. Currently, the DMV uses a single server, when processing license renewals, based on historical evidence, the average number of cu The local Division of Motor Vehicles (DMV) is concerned with its waiting line system. Currently, the DMV uses a single-server, single-line, single-phase system when processing license renewals. Based on historical evidence, the average number of customers arriving per hour is 12 and is described by a Poisson distribution. The service rate is 18 customers per hour with the service times following an exponential distribution. The customers are patient and come from an infinite population. The manager of the DMV would like you to calculate the operational characteristics of the waiting line system. (a) What is the average system utilization? (b) What is the average number of customers in the system? (c) What is the average number of customers waiting in line?…arrow_forwardQuestion 5 Silicon Valley Transport Commission (SVTC) has a fleet of maintenance vehicles that includes cars, vans, and trucks. SVTC is currently evaluating four different approaches to help them maintain their fleet of cars and vans efficiently at the lowest possible cost. Their options are: (1) No preventive maintenance at all and repair vehicle components when they fail; (2) Take oil samples at regular intervals and perform whatever preventive maintenance is indicated by the oil analysis; (3) Perform an oil change on a regular basis on each vehicle and perform repairs when needed; (4) perform oil changes at regular intervals, take oil samples regularly, and perform maintenance repairs as indicated by the sample analysis. Option #1 costs nothing to implement and results in two possible outcomes: There is a .10 probability that a defective component will occur, requiring emergency maintenance at a cost of $1,200, or there is a chance that no defects will occur and no maintenance…arrow_forwardQuestion 27 Finally, passenger rail service comes to Ohio, connecting the six major cities. Here is the planned network with the daily passenger capacity on each segment for one way travel between Cincinnati and Cleveland: Cincinatti (A) to Dayton (B) 500 Dayton (B) to Toledo (C) 200 Dayton (B) to Columbus (D) 250 Columbus (D) to Toledo (C) 100 Columbus (D) to Akron (E) 400 Toledo (C) to Cleveland (F). 250 Akron (E) to Cleveland (F) 450 Formulate a model to maximize flow of the passenger traffic from Cincinnati to Cleveland. What is the proper Objective Function for this problem? O MAX 500XAB + 200Xgc + 250XBD + 100Xpc + 400XpE + 250XCF + 450XEF O MAX A + B+C+D+E+ F O MAX XAF MAX XFAarrow_forward
- 2arrow_forwardQuestion type: Module B Linear Programming Each coffee table produced by Kevin Watson Designers nets the firm a profit of $12. Each bookcase yields a $22 profit. Watson's firm is small and its resources limited. During any given production period (of 1 week), 20 gallons of varnish and 32 lengths of high-quality redwood are available. Each coffee table requires approximately 1 gallon of varnish and 2 length of redwood. Each bookcase takes 1 gallon of varnish and 1 lengths of wood. Formulate Watson's production-mix decision as a linear programming problem, and solve. How many tables and bookcases should be produced each week? What will the maximum profit be?arrow_forwardQuestion 2 A linear programming problem can only have one optimal solution. No answer text provided. No answer text provided. True Falsearrow_forward
- Question 4 A petrol station in the capital Kingstown has a single pump manned by one attendant. Vehicles arrive at the rate of 20 customers per hour and petrol filling takes 2 minutes on an average. Assume the arrival rate is Poisson probability distribution and service rate is exponentially distributed. Arrivals tend to follow a Poisson distribution, and service times tend to be exponential. The attendant is paid $10 per hour, but because of lost goodwill and sales, station loses about $15 per hour of customer time spent waiting for the attendant to service and order. Part A Answer the following questions based on single channel model: a. What is the probability that no customers are in the system (Po)?! b. What is the average number of customers waiting for service (Lq)? c. What is the average number of customers in the system (L)?………….. d. What is the average time a customer waits for service (Wq)?! e. What is the average time in the system (W)?❤❤ s f. What is the probability that a…arrow_forwardQuestion 2 Ah Heng is in egg business. He has three poultry farms, A, B and C. The eggs are sent to three cities, X, Y and Z. The daily egg production of each farm is 7000, 8000 and 9000, respectively. The requirements at cities X, Y and Z are 6,500, 7,500 and 9,000 respectively. The average cost of transporting an egg from farm A to cities X, Y and Z are 3, 4 and 5 cents. The average cost of transporting an egg from farm B to cities X, Y and Z are 2, 4 and 5 cents. The average cost of transporting an egg from farm C to cities X, Y and Z are 3, 4 and 2 cents. a) Is this a balanced problem? b) Obtain the initial tableau for the transportation problem 1arrow_forwardQuestion attached in picturearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,
Operations ManagementOperations ManagementISBN:9781259667473Author:William J StevensonPublisher:McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi...Operations ManagementISBN:9781259666100Author:F. Robert Jacobs, Richard B ChasePublisher:McGraw-Hill Education
Purchasing and Supply Chain ManagementOperations ManagementISBN:9781285869681Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. PattersonPublisher:Cengage Learning
Production and Operations Analysis, Seventh Editi...Operations ManagementISBN:9781478623069Author:Steven Nahmias, Tava Lennon OlsenPublisher:Waveland Press, Inc.
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,
Operations Management
Operations Management
ISBN:9781259667473
Author:William J Stevenson
Publisher:McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi...
Operations Management
ISBN:9781259666100
Author:F. Robert Jacobs, Richard B Chase
Publisher:McGraw-Hill Education
Purchasing and Supply Chain Management
Operations Management
ISBN:9781285869681
Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:Cengage Learning
Production and Operations Analysis, Seventh Editi...
Operations Management
ISBN:9781478623069
Author:Steven Nahmias, Tava Lennon Olsen
Publisher:Waveland Press, Inc.