| Home | E-Submission | Sitemap | Editorial Office |
 Journal of Korean Society for Quality Management 1999;27(2): 81-.
 공정능력지수에 대한 비평과 올바른 공정능력분석 절차 백재욱 한국방송대학교 응용통계학과 Criticism and Guideline for the Use of Process Capability Index Jai-Wook Baik Korea National Open University ABSTRACT Process capability indexes are widely used in industries. Nevertheless, important statistical issues that deal with the appropriate use of process capability indexes have only appeared in the technical literature and are thus unknown to many users. In this paper we will first review various kinds of process capability indexes and then try to understand how much uncertainty is associated with them in relation to the assumption of normal distribution, the estimate of ${sigma}$, the sampling error, the size of number of observations available and the presence of data correlation. Finally, we will propose a proper use of process capability indexes in an effort to assess a complex process.
TOOLS
 Related articles Better Statistical Test for Process Capability Index $C_p$  2006 ;34(3) An Improved Process Incapability Index for the Evaluation of Process Capability  1996 ;24(4) Bootstrapping Some Process Capability Indices  1995 ;23(4) An Effective Analyzing Method of Process Capability  1987 ;15(1)