A modified approach for estimating process capability indices using improved estimators

Vahaplar S. Ş., Oruç Ö. E.

Pakistan Journal of Statistics, vol.33, no.6, pp.411-418, 2017 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 6
  • Publication Date: 2017
  • Journal Name: Pakistan Journal of Statistics
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.411-418
  • Keywords: Improved estimation, Mean square error, Process capability indices, Statistical process control
  • Dokuz Eylül University Affiliated: Yes

Abstract

© 2017 Pakistan Journal of Statistics.In this paper, new estimators for process capability indices have been proposed using improved estimators of population mean and variance. The proposed and classical indices are compared with respect to mean square error. A numerical example is considered to illustrate the proposed indices and to judge the merits of the proposed estimators.