Abstract
Process capability indices are widely used by quality professionals to determine whether a production process is capable of producing items within a specified tolerance. The capability index Cpmk is a generalised version of the basic process capability indices Cp, Cpk and Cpm. Recently, techniques and tables were developed to construct confidence limits for each index. These techniques are based on the assumption that the underlying process is normally distributed. However, many processes can be frequently skewed or heavy tailed in practice and hence the interval estimation technique that is free from the assumption of distribution is desirable. In this article, the capability index Cpmk is considered and its confidence limits are estimated using the bootstrap technique. A simulation using three distributions (one normal and two non-normal) is conducted and a comparison is made to show the performances of the three bootstrap confidence intervals.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Quality Engineering and Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
