tailieunhanh - Lecture Business statistics in practice (7/e): Chapter 17 - Bowerman, O'Connell, Murphree

Chapter 17 - Process improvement using control charts. After mastering the material in this chapter, you will be able to: Discuss the principles and importance of quality improvement, distinguish between common causes and assignable causes of process variation, sample a process by using rational subgrouping. | Chapter 17 Process Improvement Using Control Charts Copyright © 2014 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill/Irwin Process Improvement Using Control Charts Quality: Meaning and Historical Perspective Statistical Process Control and Causes of Variation Sampling a Process, Rational Subgrouping and Control Charts x and R Charts 17- Process Improvement Using Control Charts Continued Comparison of a Process with Specifications: Capability Studies Charts for Fraction Nonconforming Cause and Effect, Defect Concentration Diagrams (Optional) 17- : Meaning and Historical Perspective Quality Fitness for use Extent to which customer expectations are met Types of quality Quality of design Quality of conformance Quality of performance LO17-1: Discuss the principles and importance of quality improvement. 17- History of the Quality Movement 1924 Statistical Quality Control/Control Charts, . | Chapter 17 Process Improvement Using Control Charts Copyright © 2014 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill/Irwin Process Improvement Using Control Charts Quality: Meaning and Historical Perspective Statistical Process Control and Causes of Variation Sampling a Process, Rational Subgrouping and Control Charts x and R Charts 17- Process Improvement Using Control Charts Continued Comparison of a Process with Specifications: Capability Studies Charts for Fraction Nonconforming Cause and Effect, Defect Concentration Diagrams (Optional) 17- : Meaning and Historical Perspective Quality Fitness for use Extent to which customer expectations are met Types of quality Quality of design Quality of conformance Quality of performance LO17-1: Discuss the principles and importance of quality improvement. 17- History of the Quality Movement 1924 Statistical Quality Control/Control Charts, Shewart/Bell Telephone 1920’s Statistical Acceptance Sampling, Bell Telephone 1946 American Society for Quality Control created 1950 W. Edwards Deming introduces statistical quality control in Japan 1951 Deming Prize established in Japan 1980’s Total Quality Management (TQM) 1988 Malcolm Baldrige National Quality Awards established 1990’s ISO 9000, international quality standards adopted LO17-1 17- Statistical Process Control and Causes of Process Variation Historical inspection approach Inspection of output Action on output Scrap, rework, downgrade (expensive!) Statistical process control Monitor and study process variation Goal: Continuous process improvement Preventing by quality through process improvement LO17-2: Distinguish between common causes and assignable causes of process variation. 17- Causes of Process Variation Common causes Typical (random) variation inherent in process design Process in statistical control Assignable causes Unusual process variation .