OPERATIONS MANAGEMENT: SUSTAIN ACCESS C
13th Edition
ISBN: 9780135662076
Author: HEIZER
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 9, Problem 13P
Illinois Furniture, Inc., produces all types of office furniture. The “Executive Secretary” is a chair that has been designed using ergonomics to provide comfort during long work hours. The chair sells for $130. There are 480 minutes available during the day, and the average daily demand has been 50 chairs. There are eight tasks:
| TASK | PERFORMANCE TIME (MIN) | TASK MUST FOLLOW TASK LISTED BELOW |
| A | 4 | − |
| B | 7 | − |
| C | 6 | A, B |
| D | 5 | C |
| E | 6 | D |
| F | 7 | E |
| G | 8 | E |
| H | 6 | F. G |
- a. Draw a precedence diagram of this operation.
- b. What is the cycle time for this operation?
- c. What is the theoretical minimum number of workstations?
- d. Assign tasks to workstations.
- e. What is the idle time per cycle?
- f. How much total idle time is present in an 8-hour shift?
- g. What is the efficiency of the assembly line, given your answer in (d)?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Illinois Furniture, Inc., produces all types of office furniture. The "Executive Secretary" is a chair that has been designed using ergonomics to provide comfort during long work hours. The chair sells for $130. There are
480
minutes available during the day, and the average daily demand has been
50
chairs. There are eight tasks:
Task
Performance Time (mins)
Task Must Follow Task Listed Below
A
4
−
B
6
−
C
6
A, B
D
5
C
E
7
D
F
6
E
G
7
E
H
7
F, G
This exercise only contains parts b, c, d, e, f, and g.
The cycle time for the production of a chair =
9.69. minutes (round your response to two decimal places).
The theoretical minimum number of
workstations=5 (round your response up to the next whole number).
d) The assignment of tasks to workstations should be: (Hint:…
Vikiki Furniture, Inc. produces all types of office furniture. The "Executive Secretary" is a sofa-bed that has been designed using ergonomics to provide comfort during long work hours. The sofa-bed sells for $138. There are 580 minutes available during the day, and the average daily demand has been 65 items. There are eight tasks: Task performance time (min) task must follow task listed A 4 -- B 7 -- C 6 A, B D 5 C E 6 D F 7 E G 8 E H 6 F, G Total 49 min What is the Cycle time for this operation?
Illinois Furniture, Inc., produces all types of office furniture. The "Executive Secretary" is a chair that has been designed using ergonomics to provide comfort during long work hours. The chair sells for $130. There are 480 minutes available during the day, and the
average daily demand has been 52 chairs. There are eight tasks:
Performance Time Task Must Follow
Task
(mins)
Task Listed Below
A
4.
B
7
6
А, В
D
E
7
D
F
6
G
8
Station 1
H
Station 7
This exercise only contains parts b, c, d, e, f, and g.
Station 5
b) The cycle time for the production of a chair = 9.23 minutes (round your response to two decimal places).
Station 3
c) The theoretical minimum number of workstations = 6 (round your response up to the next whole number).
Station 6
d) The assignment of tasks to workstations should be: (Hint: Number workstations sequentially in terms of precedence relationships and c
Station 4
able tasks.)
Station 2
Task
Work:
Station 8
A
B
Chapter 9 Solutions
OPERATIONS MANAGEMENT: SUSTAIN ACCESS C
Ch. 9 - Prob. 1EDCh. 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. 10DQCh. 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 - Six processes are to be laid out in six areas...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 - Prob. 8PCh. 9 - Prob. 9PCh. 9 - Prob. 25PCh. 9 - Prob. 26PCh. 9 - Prob. 27PCh. 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
- Tailwind, Inc., produces high-quality but expensive training shoes for runners. The Tailwind shoe, which sells for $210, contains both gas- and liquid-filled compartments to provide more stability and better protection against knee, foot, and back injuries. Manufacturing the shoes requires 10 separate tasks. There are 400 minutes available for manufacturing the shoes in the plant each day. Daily demand is 60. The information for the tasks is as follows: Performance Time Task (in minutes) 1 Н ABCDEFGH Task Must Follow This Task C, D ABB GAFG 324-325- E, H 25 312 | Required: a. Draw the precedence diagram showing the task precedence and their times b. Determine the cycle time associated with the rate of output required. c. What is the theoretical minimum number of work stations required to satisfy this output rate? d. Allocate the tasks to work stations taking into consideration the precedence requirements and using the LOT rule to break ties between feasible tasks. e. What is the…arrow_forwardIllinois Furniture, Inc., produces all types of office furniture. The "Executive Secretary" is a chair that has been designed using ergonomics to provide comfort during long work hours. The chair sells for $130. There are 480 minutes available during the day, and the average daily demand has been 48 chairs. There are eight tasks: Task A BCDEFGH Performance Time (mins) 5 189CS SNS 7 6 6 7 6 7 Task Must Follow Task Listed Below This exercise only contains part a. a) The correct precedence diagram is present in 2ooww A, B C D E E F, G C Figure 1 Figure 2 Figure 3 GO-D-680 Farrow_forwardSue 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_forward
- The Sun River beverage company is a regional producer of teas, exotic juices, and energy drinks. With an interest in healthier lifestyles, there has been an increase in demand for its sugar-free formulation. The final packing operation requires 13 tasks. Sun River bottles its sugar-free product 5 hours a day, 5 days a week. Each week, there is a demand for 3,000 bottles of this product. TASK TIME (MINUTES) PRECEDING TASK 1 0.1 — 2 0.1 1 3 0.1 2 4 0.2 2 5 0.1 2 6 0.2 3, 4, 5 7 0.1 1 8 0.1 7 9 0.2 8 10 0.1 9 11 0.2 6 12 0.2 10, 11 13 0.1 12 Using the following data, solve the assembly-line balancing problem and calculate the efficiency of your solution. Use the longest task time for your decision criteria. Note: Round your answer to the nearest whole percent.arrow_forwardTailwind, Inc., produces high-quality but expensive training shoes for runners. The Tailwind shoe, which sells for $210, contains both gas- and liquid-filled compartments to provide more stability and better protection against knee, foot, and back injuries. Manufacturing the shoes requires 10 separate tasks. There are 400minutes available for manufacturing the shoes in the plant each day. Daily demand is 62.The information for the tasks is as follows: Task Performance Time (mins) Predecessors A 1 − B 3 A C 1 B D 4 B E 1 C, D F 3 A G 2 F H 5 G I 3 E, H J 2 I a-b) The correct precedence relationship with one of the possible assignments of tasks using the "ranked positionedweight" to workstations is shown in Fig 1, 2 or 3 c) The efficiency of the assembly line with 5 workstations shown in the figure…arrow_forwardCreate a simple but realistic S-curve showing the budget and time allotment for renovating a room, give at least 2 tasks for room renovating.arrow_forward
- Waldorf Astoria Spa & Health Club at Waldorf Astoria Chicago offers high-quality hair-styling and physical relaxation services at a reasonable price, so it always has unlimited demand. The process comprised of five tasks that are completed in the sequence described below. (The time required for each task is shown in parenthesis). Task 1: Welcome a guest and offer homemade herb tea (10 minutes) Task 2: Wash and condition hair (10 minutes) Task 3: Neck, shoulder, and back stress release massage (10 minutes) Task 4: Design the hairstyle and do the hair (25 minutes) Task 5: Check out the guest (5 minutes) Three servers (S1, S2, and S3) offer the services in a worker-paced line. The assignment of tasks to servers is the following: S1 completes Task 1. S2 completes Tasks 2 and 3. S3 completes Tasks 4 and 5. Assume a wage rate of $18 per hour. What are the direct labor costs for one guest?arrow_forwardKiko 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…arrow_forwardKiko 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…arrow_forward
- Tailwind, Inc., produces high-quality but expensive training shoes for runners. The Tailwindshoe, which sells for $210, contains both gas- and liquid-filled compartments to provide morestability and better protection against knee, foot, and back injuries. Manufacturing the shoesrequires 10 separate tasks. There are 400 minutes available for manufacturing the shoes inthe plant each day. Daily demand is 60. The information for the tasks is as follows: Task Performance Time (In minutes) Task Must Follow This task A 1 ___ B 3 A C 2 B D 4 B E 1 C.D F 3 A G 2 F H 5 G I 1 E,H J 3/25 I 1. What is the theoretical minimum number of work stations required to satisfy this output rate? 2. Allocate the tasks to work stations taking into consideration the precedence requirements and usingthe LOT rule to break ties between feasible tasks.arrow_forwardRock View Restaurant is a new fast food restaurant chain. The Operations Manager has dividedits normal drive-through service process into the following tasks:Tasks Description Task Time(InSeconds)PredecessorsA Take order 25 NoneB Receive payment 20 AC Gather drinks 35 AD Gather food 32 AE Put food etc. in bag 25 C,DF Give food to customer 10 B,E Currently, Rock View Restaurant has a single window with one person who takes the order, gather the food, collects the money and gives the food to the customer. This takes an average of 147 seconds per customer so only 25.5 cars can be served.…arrow_forwardRock View Restaurant is a new fast food restaurant chain. The Operations Manager has dividedits normal drive-through service process into the following tasks:Tasks Description Task Time(InSeconds)PredecessorsA Take order 25 NoneB Receive payment 20 AC Gather drinks 35 AD Gather food 32 AE Put food etc. in bag 25 C,DF Give food to customer 10 B,E Currently, Rock View Restaurant has a single window with one person who takes the order, gather the food, collects the money and gives the food to the customer. This takes an average of 147 seconds per customer so only 25.5 cars can be served.…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,
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,
Inventory Management | Concepts, Examples and Solved Problems; Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=2n9NLZTIlz8;License: Standard YouTube License, CC-BY