Economic design of non parametric sign control chart. Issue 18 (17th September 2017)

• Record Type: Journal Article
• Authors: Patil, S. H.; Shirke, D. T.
• Is Part Of: Communications in statistics. Volume 46:Issue 18(2017)
• Page Start: 8987
• Page End: 8998
• Publication Date: 2017-09-17
• Subjects: Economic design -- economic statistical design -- non parametric control chart -- non normal process -- optimal design -- sign control chart.; Mathematical statistics -- Periodicals; Mathematics; Statistics; 519.2
• DOI: 10.1080/03610926.2016.1200095
• Languages: English
• ISSNs: 0361-0926

Abstract

ABSTRACT: An economic design of sign chart to control the median is proposed. Since the sign chart is distribution free, it can easily be applied to any process without prior knowledge of process quality distribution. The effect on loss cost observed for different shifts in location shows that the sign chart performs better for large shifts. The economic statistical performance study reveals that statistical performance of sign chart can be improved sufficiently for moderate shifts in the process. Sensitivity study shows that design is more sensitive for change in values of penalty loss cost and time required for search and repair of an assignable cause.