A new capability index for non-normal distributions based on linex loss function. Issue Volume 33:Issues 1(2021) (2nd January 2021)

• Record Type: Journal Article
• Authors: Erfanian, Mahdiyeh; Sadeghpour Gildeh, Bahram
• Is Part Of: Quality engineering. Volume 33:Issues 1(2021)
• Page Start: 76
• Page End: 84
• Publication Date: 2021-01-02
• Subjects: asymmetric loss function -- bootstrap -- linex function -- process capability analysis -- process capability index; Quality control -- Periodicals; Production management -- Quality control -- Periodicals; 658.5
• DOI: 10.1080/08982112.2020.1761026
• Languages: English
• ISSNs: 0898-2112

Abstract

Abstract: Capability indices are the most common tools in process capability analysis, measuring how much the product meets the costumer expectations. One type of capability indices are loss-based indices that consider the cost of the difference between the product characteristic and its target value. In this work, we apply an asymmetric loss function to construct a new loss-based capability index for non-normal processes allowing a more customized way of considering the costs in capability analysis. The performance of the proposed capability index is studied by simulation results. Three real examples are given to show the utilization of the proposed index.