Title

A General Approach For Testing The Process Capability Index

Keywords

Capability; Inverse chi‐square; Process performance

Abstract

This paper presents a generalized approach to the problem of testing with the process capability index Cĉp. It allows for testing at any α‐level and any sample size. For small sample sizes n < 30, n odd, tables are included with αs incremented by 0.025, which are generated by a computer program. This program is written in BASIC and appears in an Appendix. For different α levels (say α = 0·1) the program can be used to generate the appropriate value to use in determining the critical values. For larger sample sizes an approximation method is supplied. Additionally, the method to derive an associated operating characteristic curve is examined. Copyright © 1993 John Wiley & Sons, Ltd.

Publication Date

1-1-1993

Publication Title

Quality and Reliability Engineering International

Volume

9

Issue

5

Number of Pages

445-449

Document Type

Article

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1002/qre.4680090508

Socpus ID

0027659094 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0027659094

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