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Statistical Quality Control, 7th Edition by Douglas C. Montgomery

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15 Lot-by-Lot Acceptance Sampling for Attributes

CHAPTER OUTLINE

15.1 THE ACCEPTANCE-SAMPLING PROBLEM

15.1.1 Advantages and Disadvantages of Sampling

15.1.2 Types of Sampling Plans

15.1.3 Lot Formation

15.1.4 Random Sampling

15.1.5 Guidelines for Using Acceptance Sampling

15.2 SINGLE-SAMPLING PLANS FOR ATTRIBUTES

15.2.1 Definition of a Single-Sampling Plan

15.2.2 The OC Curve

15.2.3 Designing a Single-Sampling Plan with a Specified OC Curve

15.2.4 Rectifying Inspection

15.3 DOUBLE, MULTIPLE, AND SEQUENTIAL SAMPLING

15.3.1 Double-Sampling Plans

15.3.2 Multiple-Sampling Plans

15.3.3 Sequential-Sampling Plans

15.4 MILITARY STANDARD 105E (ANSI/ASQC Z1.4, ISO 2859)

15.4.1 Description of the Standard

15.4.2 Procedure

15.4.3 Discussion

15.5 THE DODGE–ROMIG SAMPLING PLANS

15.5.1 AOQL Plans

15.5.2 LTPD Plans

15.5.3 Estimation of Process Average

Supplemental Material for Chapter 15

S15.1 A Lot Sensitive Compliance (LTPD) Sampling Plan

S15.2 Consideration of Inspection Error

The supplemental material is on the textbook Website www.wiley.com/college/montgomery.

CHAPTER OVERVIEW AND LEARNING OBJECTIVES

This chapter presents lot-by-lot acceptance-sampling plans for attributes. Key topics include the design and operation of single-sampling plans, the use of the operating characteristic curve, and the concepts of rectifying inspection, average outgoing quality, and average total inspection. Similar concepts are briefly introduced for types of sampling plans where more than one sample may be taken ...

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