Chapter 6 Introduction to Statistical Quality Control 5

Chapter 6 Introduction to Statistical Quality Control, 5 th Edition by Douglas C. Montgomery. Copyright (c) 2005 John Wiley & Sons, Inc. 1

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Chapter 6 Introduction to Statistical Quality Control, 5 th Edition by Douglas C. Montgomery. Copyright (c) 2005 John Wiley & Sons, Inc. 5

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Chapter 6 Introduction to Statistical Quality Control, 5 th Edition by Douglas C. Montgomery. Copyright (c) 2005 John Wiley & Sons, Inc. 8

Chapter 6 Introduction to Statistical Quality Control, 5 th Edition by Douglas C. Montgomery. Copyright (c) 2005 John Wiley & Sons, Inc. 9

Chapter 6 Introduction to Statistical Quality Control, 5 th Edition by Douglas C. Montgomery. Copyright (c) 2005 John Wiley & Sons, Inc. 10

Chapter 6 Introduction to Statistical Quality Control, 5 th Edition by Douglas C. Montgomery. Copyright (c) 2005 John Wiley & Sons, Inc. 11

Chapter 6 Introduction to Statistical Quality Control, 5 th Edition by Douglas C. Montgomery. Copyright (c) 2005 John Wiley & Sons, Inc. 12

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Chapter 6 Introduction to Statistical Quality Control, 5 th Edition by Douglas C. Montgomery. Copyright (c) 2005 John Wiley & Sons, Inc. 15

Chapter 6 Introduction to Statistical Quality Control, 5 th Edition by Douglas C. Montgomery. Copyright (c) 2005 John Wiley & Sons, Inc. 16

Design of Fraction Nonconforming Chart • Three parameters must be specified 1. The sample size 2. The frequency of sampling 3. The width of the control limits • • Chapter 6 Common to base chart on 100% inspection of all process output over time Rational subgroups may also play role in determining sampling frequency Introduction to Statistical Quality Control, 5 th Edition by Douglas C. Montgomery. Copyright (c) 2005 John Wiley & Sons, Inc. 17

Chapter 6 Introduction to Statistical Quality Control, 5 th Edition by Douglas C. Montgomery. Copyright (c) 2005 John Wiley & Sons, Inc. 18

Chapter 6 Introduction to Statistical Quality Control, 5 th Edition by Douglas C. Montgomery. Copyright (c) 2005 John Wiley & Sons, Inc. 19

Chapter 6 Introduction to Statistical Quality Control, 5 th Edition by Douglas C. Montgomery. Copyright (c) 2005 John Wiley & Sons, Inc. 20

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