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http://dx.doi.org/10.7465/jkdi.2015.26.1.11

Various types of analysis of warranty returns data  

Baik, Jaiwook (Department of Information Statistics, Korea National Open University)
Jo, Jinnam (Department of Statistics & Information, Dongduk Women's University)
Publication Information
Journal of the Korean Data and Information Science Society / v.26, no.1, 2015 , pp. 11-19 More about this Journal
Abstract
A certain number of products are transported to be sold each month and some of them are returned for repair. In this study we first assume that the transported products are the ones that have been sold, Then nonparametric approach is applied to the warranty returns data to see how the reliability decreases over time. Parametric approach such as Weibull distribution is applied to the same data and the results for both nonparametric and parametric approaches are compared. Next we assume that there is a time lag between shipment and sale. Then both nonparametric and parametric approaches are applied to the time-lag data and the results are compared.
Keywords
Nonparametric method; time-lag; warranty returns data; Weibull distribution;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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