Operations Management: Sustainability and Supply Chain Management (12th Edition)
12th Edition
ISBN: 9780134130422
Author: Jay Heizer, Barry Render, Chuck Munson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 9, Problem 24P
As the Cottrell Bicycle Co. of St. Louis completes plans for its new assembly line, it identifes 25 different tasks in the production process. VP of Operations Jonathan Cottrell now faces the job of balancing the line. He lists precedences and provides time estimates for each step based on work-sampling techniques. His goal is to produce 1,000 bicycles per standard 40-hour workweek.
- a. Balance this operation, using various heuristics. Which is best and why?
- b. What happens if the firm can change to a 41-hour workweek?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A time study involving the preparation of hamburgers at Bill’s fast-food restaurant used the snap-back method to obtain the data (in minutes) shown below. Allowances typically constitute 15% of normal time. The schedule calls for 300 hamburgers to be prepared during the lunch rush. If each part-time employee works 190 minutes per day, how many employees will be needed?
Observation
Work Element
1
2
3
4
5
t
F
RF
NT
1. Prepare Patty
0.45
0.41
0.50
0.48
0.36
1
0.9
2. Cook First side
0.85
0.81
0.77
0.89
0.83
1
1.2
3. Flip, press, and cook the other side
0.60
0.55
0.59
0.58
0.63
1
1.2
4. Assemble
0.31
0.24
0.27
0.26
0.32
1
1.0
Show work
Kiko Teddy Bear is a manufacturer of stuffed teddy bears. Kiko would like to be able to produce 40teddy bears per hour on its assembly line. The following information will assist in answering thequestions that follow:
Task Information for Kiko Teddy Bear
Work Element Task Description ImmediatePredecessor Task Time (inseconds)A Cut teddy bear pattern None 90B Sew teddy bear cloth A 75C Stuff teddy bear B 50D Glue on eyes C 20E Glue on nose C…
Kiko Teddy Bear is a manufacturer of stuffed teddy bears. Kiko would like to be able to produce 40teddy bears per hour on its assembly line. The following information will assist in answering thequestions that follow:
Task Information for Kiko Teddy Bear
Work Element Task Description ImmediatePredecessor Task Time (inseconds)A Cut teddy bear pattern None 90B Sew teddy bear cloth A 75C Stuff teddy bear B 50D Glue on eyes C 20E Glue on nose C…
Chapter 9 Solutions
Operations Management: Sustainability and Supply Chain Management (12th Edition)
Ch. 9 - Prob. 1DQCh. 9 - Prob. 2DQCh. 9 - Prob. 3DQCh. 9 - Prob. 4DQCh. 9 - Prob. 5DQCh. 9 - Prob. 6DQCh. 9 - Prob. 7DQCh. 9 - Prob. 8DQCh. 9 - What are the requirements for a focused work...Ch. 9 - Prob. 10DQ
Ch. 9 - Prob. 11DQCh. 9 - Prob. 12DQCh. 9 - Prob. 13DQCh. 9 - Prob. 14DQCh. 9 - Prob. 15DQCh. 9 - Prob. 16DQCh. 9 - Explain the concept of cross-docking.Ch. 9 - What is a heuristic? Name several that can be used...Ch. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Three departmentsmilling (M), drilling (D), and...Ch. 9 - Roy Creasey Enterprises, a machine shop, is...Ch. 9 - Prob. 5PCh. 9 - Prob. 6PCh. 9 - Prob. 7PCh. 9 - Prob. 8PCh. 9 - Six processes are to be laid out in six areas...Ch. 9 - After an extensive product analysis using group...Ch. 9 - Stanford Rosenberg Computing wants to establish an...Ch. 9 - Illinois Furniture, Inc., produces all types of...Ch. 9 - Sue Helms Appliances wants to establish an...Ch. 9 - The Action Toy Company has decided to manufacture...Ch. 9 - The following table details the tasks required for...Ch. 9 - Tailwind, Inc., produces high-quality but...Ch. 9 - Prob. 18PCh. 9 - Because of the expected high demand for Mach 10,...Ch. 9 - Prob. 20PCh. 9 - Suppose production requirements in Solved Problem...Ch. 9 - The preinduction physical examination given by the...Ch. 9 - Samuel Smith's company wants to establish an...Ch. 9 - As the Cottrell Bicycle Co. of St. Louis completes...Ch. 9 - Prob. 1CSCh. 9 - Prob. 2CSCh. 9 - Prob. 3CSCh. 9 - Prob. 4CSCh. 9 - Prob. 1.1VCCh. 9 - Prob. 1.2VCCh. 9 - Prob. 1.3VCCh. 9 - Prob. 1.4VCCh. 9 - Prob. 1.5VCCh. 9 - Prob. 1.6VCCh. 9 - Prob. 2.1VCCh. 9 - Prob. 2.2VCCh. 9 - Prob. 2.3VC
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
- A company is setting up an assembly line to produce 90 units per hour. The table below identifies the work elements, times, and immediate predecessors. Work Element Time (Sec.) Immediate Predecessor(s) A 25 - B 18 A C 20 A D 5 B, C E 12 C F 8 E G 16 D, F H 12 G What cycle time is required to satisfy the required output? What is the theoretical minimum number of stations?arrow_forwardHi, I need help finding the answer to this OM problem. Thanks!arrow_forwardFrancis Johnson’s plant needs to design an efficient assembly line to make a new product. The assembly line needs to produce 15 units per hour, and there is room for only four workstations. The tasks and the order in which they must be performed are shown in the following table. Tasks cannot be split, and it would be too expensive to duplicate any task. TASK TASK TIME (MINUTES) IMMEDIATE PREDECESSOR A 1 — B 2 — C 3 — D 1 A, B, C E 3 C F 2 E G 3 E What is the workstation cycle time required to produce 15 units per hour? Note: Round your answer to 1 decimal place. Balance the line to use the fewest possible workstations to meet the cycle time found in part (b). Use whatever method you feel is appropriate. What is the efficiency of your line balance, assuming the line operates at the cycle time from part (b)? Note: Round your answer to 1 decimal place.arrow_forward
- Given the operation times provided:a. Develop a job sequence that minimizes idle time at the two work centers.b. Construct a chart of the activities at the two centers, and determine each one’s idle time,assuming no other activities are involved.JOB TIMES (minutes)A B C D E FCenter 1 20 16 43 60 35 42Center 2 27 30 51 12 28 24arrow_forwardUpdike Upholstery cuts and sews fabric for customordered chairs, ottomans, and sofas. Often, the more com-plicated patterns are for the smaller pieces, where cuttingis more time consuming than sewing. Thus, cutting andsewing times vary. Today’s list of jobs, shown below, arefor an important customer who needs them shipped out(in one shipment) as soon as possible. Determine thesequence of jobs that will complete the customer’s orderas quickly as possible, and notify the customer when theorder is expected to ship.arrow_forwardA company is designing a product layout for a new product. It plans to use this production line eight hours a day in order to meet projected demand of 400 units per day. The tasks necessary to produce this product are detailed in the table below. Time Task Predecessor (seconds) A 50 A 36 26 22 E B, D 70 F C, E 30 What is the required cycle time in seconds in order to meet the projected demand? (Answer with two decimal places i.e. 26.00, 326.80) Answer: B C Darrow_forward
- Referring to the table below obs Work Center 1 ( in Days ) Work Center 2 ( in Days ) Due Dates 1 6 2 10 2 5 4 12 3 5 6 15 4 3 4 8 5 2 1 7 a. What is the ECT and idle time using Johnson’s Rule? Show the drawing of the WC. b. What is the ECT and idle time using EDD as a basis for sequencing? Show the drawing of the WC c. Compare the results and make a recommendation as the best way to do the sequence of jobsarrow_forwardAs the Cottrell Bicycle Co. of St. Louis completes plans for its new assembly line, it identifies 25 different tasks in the production process. VP of Operations Jonathan Cottrell now faces the job of balancing the line. He lists precedences and provides time estimates for each step based on work- sampling techniques. His goal is to produce 1,000 bicycles per standard 40-hour workweek. Task Time (sec) Immediate Task Time (sec) Immediate Predecessors Predecessors K3 60 E3 109 F3 K4 24 K3 D6 53 F4 K9 27 K3 D7 72 F9, E2, E3 J1 66 K3 D8 78 E3, D6 J2 22 K3 - D9 37 D6 J3 3 C1 78 F7 G4 79 K4, K9 B3 72 D7, D8, D9, C1 G5 29 К9, 1 B5 108 C1 F3 32 12 B7 18 B3 F4 92 J2 A1 52 B5 F7 21 J3 A2 72 B5 F9 126 G4 A3 114 B7, A1, A2 E2 18 G5, F3 a) Balance this operation using shortest operation time rule and compute the efficiency of the line. b) Discuss how this balance could be improved. Is it possible to improve this balance to 100%? O Focus ASUS VivoBookarrow_forwardC6Q4 Please see the screen shot and help me solve the problem. Please give me the steps that you used to find the solution so that I can learn to solve:arrow_forward
- Sue Helms Appliances wants to establish an assem-bly line to manufacture its new product, the Micro Popcorn Popper. The goal is to produce five poppers per hour. The tasks,task times, and immediate predecessors for producing one MicroPopcorn Popper are as follows:TASK TIME (min) IMMEDIATEPREDECESSORSA 10 —B 12 AC 8 A, BD 6 B, CE 6 CF 6 D, Ea) What is the theoretical minimum for the smallest number ofworkstations that Helms can achieve in this assembly line?b) Graph the assembly line, and assign workers to workstations.Can you assign them with the theoretical minimum?c) What is the efficiency of your assignment?arrow_forwardManagement wants to design an assembly line that will turn out 800videotapes per day. There will be eight working hours in each day. The industrial engineeringstaff has assembled the information below: Task Time (min.) Immediate Follower a .2 b,d b .2 f c .4 b,e d .1 e e .3 f f .2 h g .1 h h .2 i i .6 none A) Determine the optimum cycle time (i.e., actual operating time/desired output).B) What is the minimum number of stations needed?C) Assign tasks to work stations.D) What is the efficiency of this assembly line?arrow_forwardMary Ann Clark is an artist and is employed by Fenway Racing. Fenway Racing manufactures custom race cars to exact specifications of drivers. Mary Ann's job is to hand paint logos and other custom artwork on each car. Below is her daily time sheet for March 7, 20X6: b.) How much of Mary Ann's time (after making the correction) is attributable to direct labor and how much to overhead? How is the direct labor cost assigned to individual jobs, and how is the overhead cost allocated?arrow_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 EducationOperations 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 LearningProduction 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.
Inventory Management | Concepts, Examples and Solved Problems; Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=2n9NLZTIlz8;License: Standard YouTube License, CC-BY