Table of Contents

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Contents

1 Introduction

1.1 Acceptance Sampling in Industry and Commerce

1.2 Who Should Understand Acceptance Sampling?

1.3 What Are Sampling Plans?

1.4 Terminology

1.5 What determines a sampling plan?

1.6 Problems

2 Single-Stage Inspection Plans for Attributes

2.1 Computing Acceptance Probabilities

2.2 The Operating Characteristic (OC) Curve

2.3 Designing a Sampling Plan

2.4 ANSI/ASQC Z1.4 (Military Standard 105-E) Tables

2.5 Accept-On-Zero (AOZ) Plans

2.6 Single-Stage Plans for Multiple Defects-per-Unit

2.7 Sampling Plans for Specified Producer and Consumer Risks

2.8 Problems

3 Double-Stage Inspection Plans for Attributes

3.1 Double-Stage Sampling Procedure

3.2 Why Use Double-Stage Plans?

3.3 Probability of Acceptance and OC Curves

3.4 Expected Amount of Inspection

3.5 ANSI/ASQC Z1.4 Tables (Mil-Std105E)

3.6 Problems

4 Rectifying Sampling Plans

4.1 Single-Stage Rectifying Plans

4.2 Double-Stage Rectifying Plans 4.3 Problems

5 Inspection Plans for Variables

5.1 Example: Organic Milk Distribution

5.2 Specification Limits

5.3 Procedure

5.4 The Normality Assumption

5.5 Known vs. Unknown Process Standard Deviation

5.6 k-Method: Distance of Sample Mean from Specification Limit

5.7 M-Method: Limit on Proportion of Non-Conforming Items

5.8 ANSI/ASQC Z1.9 Tables (Military Standard 414)

5.9 Sampling Plans for Specified Producer and Consumer Risks

5.10 Problems

6 Continuous Sampling

6.1 Continuous Sampling Plan 1 (CSP-1)

6.2 Continuous Sampling Plan 2 (CSP-2)

6.3 Mil-Std-1235 Tables

6.4 Online Plans

6.5 Skip-Lot Sampling Plans

6.6 Problems