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http://dx.doi.org/10.7232/JKIIE.2015.41.1.115

A Study on Small-Sample Inspection Plan for New Product Quality Evaluation of Finite Population  

Byun, Jai-Hyun (Department of Industrial and Systems Engineering and Engineering Research Institute, Gyeongsang National University)
Shin, Byung-Cheol (Department of Industrial and Systems Engineering and Engineering Research Institute, Gyeongsang National University)
Lee, Chang-Woo (Daegu Center, Quality Management Bureau, Defense Agency for Technology and Quality)
Publication Information
Journal of Korean Institute of Industrial Engineers / v.41, no.1, 2015 , pp. 115-120 More about this Journal
Abstract
Evaluating product quality level is necessary before the manufactured items are delivered to the customer. When the amount of the items to be manufactured is limited and the product is of high price and should be evaluated by destructive testing, the number of samples to be tested should be as small as possible. This paper presents a small-sample inspection method using hyper-geometric distribution and Bayesian approach for finite small-sized population. A method of determining the minimum sample size is presented for given population size, allowable number of defectives, warranteed defective level, and confidence level which is the degree of confidence on the product quality level recognized by both the producer and the customer.
Keywords
Product development; Quality level; Finite population; Small-sample inspection; Bayesian approach; Hyper-geometric distribution; Confidence level;
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  • Reference
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