Operations Management
13th Edition
ISBN: 9781259667473
Author: William J Stevenson
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 10, Problem 7P
Summary Introduction
To determine: The upper and lower control limits for the fraction and decide if the process is in control.
Introduction: Quality is a measure of excellence or a state of being free from deficiencies, defects and important variations. It is obtained by consistent and strict commitment to certain standards to attain uniformity of a product to satisfy consumers’ requirement.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Southern Mills Company
One of the stages in the process of making denim cloth at the Southern Mills Company is to spin
cotton yarn onto spindles for subsequent use in the weaving process. Occasionally the yarn breaks
during the spinning process, and an operator ties it back together. Some number of breaks is
considered normal; however, too many breaks may mean that the yarn is of poor quality. In order to
monitor this process, the quality-control manager randomly selects a spinning machine each hour
and checks the number of breaks during a 15-minute period. Following is a summary of the
observations for the past 20 hours.
Construct a c-chart using 3 limits for this process and indicate if the process was out of control at
any time.
Number of
Number of
Sample
Breaks
Sample
Breaks
1
3
11
2
12
4
3
4
13
6
1
14
7
5
5
15
8
6
3
16
6
7
2
17
5
8
4
18
7
19
8
10
2
20
6
Breeze Toothpaste Company has been having a problem with some of the tubes of toothpaste leaking. The tubes are produced in lots of 100 and are subject to 100% visual inspection. The latest 25 lots produced yielded 112 rejected toothpastes.
Calculate the central line and control limits to monitor this process?
One of the stages in the process of making denim cloth at the Southern Mills Company is to spin cotton yarn onto spindles for subsequent use in the weaving process. Occasionally the yarn breaks during the spinning process, and an operator ties it back together. Some number of breaks is considered normal; however, too many breaks may mean that the yarn is of poor quality. In order to monitor this process, the quality-control manager randomly selects a spinning machine each hour and checks the number of breaks during a 15-minute period. Following is a summary of the observations for the past 20 hours.
Construct a c-chart using 3 limits for this process and indicate if the process was out of control at any time.
Chapter 10 Solutions
Operations Management
Ch. 10.2 - A potato chip is a delicate thing Fragile A pound...Ch. 10.2 - A potato chip is a delicate thing Fragile A pound...Ch. 10.5 - It's estimated that more than 7 000 hospital...Ch. 10.5 - It's estimated that more than 7 000 hospital...Ch. 10 - Prob. 1DRQCh. 10 - Prob. 2DRQCh. 10 - Prob. 3DRQCh. 10 - Prob. 4DRQCh. 10 - Prob. 5DRQCh. 10 - Prob. 6DRQ
Ch. 10 - Prob. 7DRQCh. 10 - Prob. 8DRQCh. 10 - Prob. 9DRQCh. 10 - Prob. 10DRQCh. 10 - Prob. 11DRQCh. 10 - Prob. 12DRQCh. 10 - Prob. 13DRQCh. 10 - Prob. 14DRQCh. 10 - Prob. 15DRQCh. 10 - Prob. 16DRQCh. 10 - Prob. 1TSCh. 10 - Prob. 2TSCh. 10 - Prob. 3TSCh. 10 - Prob. 1CTECh. 10 - Prob. 2CTECh. 10 - Prob. 3CTECh. 10 - Prob. 4CTECh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 11PCh. 10 - Prob. 12PCh. 10 - Prob. 13PCh. 10 - Prob. 14PCh. 10 - Prob. 15PCh. 10 - Prob. 16PCh. 10 - Prob. 17PCh. 10 - A production process consists of a three-step...Ch. 10 - Prob. 19PCh. 10 - Prob. 20PCh. 10 - Prob. 21PCh. 10 - Prob. 22PCh. 10 - Prob. 23PCh. 10 - Prob. 24PCh. 10 - Prob. 25PCh. 10 - Prob. 26PCh. 10 - Prob. 27PCh. 10 - Prob. 28PCh. 10 - Prob. 29PCh. 10 - Prob. 1.1CQCh. 10 - Prob. 2.1CQCh. 10 - Prob. 2.2CQCh. 10 - Prob. 2.3CQCh. 10 - Prob. 2.4CQ
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
- Explain the relevance of control charts in achieving continual improvement for industrial settings. Give an example that will justify your explanation.arrow_forwarda professor records the number of students who complains each week throughout the semester. if the class size is forty students, what are3 sigma control limits class? Construct a control chart and interpret the data.arrow_forwardConsider the process of filling prescriptions at two pharmacy locations. Over the past year, 2,500 prescriptions were filled at the first location, and 3,000 prescriptions were filled at the second location. Quality is measured by the proper medication being dispensed. In 12 instances at the first location and 15 instances at the second location, the incorrect medication was given. Calculate the dpmo and its corresponding sigma level for this processarrow_forward
- Give typing answer with explanation and conclusionarrow_forwardWhat type of measurement varies only in kind or quality? Group of answer choices ratio nominal ordinal intervalarrow_forwardAssume the following: A quality manager at a popular restaurant in a New York has accurately measured the Cp & Cpk values associated with the delivery times of the food delivered by her restaurant. He has measured these values over an acceptable time period. The measured values are such that: Cp > 1, and Cpk < 1. Then: a. The process is both cappable and centered between the specification limits. b. The process is neither cappable nor centered between the specification limits. c. The process is cappable but not centered between the specification limits. d. The process is not cappable but centered between the specification limits.arrow_forward
- GE adopted Six Sigma from Motorola in 1995, Which of the following is not an advantage of using Six Sigma : Select one: A. A decrease in customer satisfaction B. Defect reduction C. Process improvement D. Product improvementarrow_forwardMathematically, explain the reference tracking and disturbance rejection situations in control system engineering.arrow_forwardplease answer in 30 minutes.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 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.