Summary
Economic designs of single and double screening procedures for improving outgoing product quality based on two screening variables are presented for the case of one-sided specification limit. Two screening variables are observed simultaneously in single screening procedure and are observed sequentially in double screening procedure. It is assumed that the performance variable and the two screening variables are jointly normally distributed. Three quality cost functions — constant, linear, and quadratic — are considered. Cost models are constructed which involve screening inspection cost, and costs of accepted and rejected item. Methods of finding the optimal cutoff values are presented and a numerical example is given.
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Bai, D.S., Lee, M.K. Economic designs of single and double screening procedures. Metrika 40, 95–113 (1993). https://doi.org/10.1007/BF02613667
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DOI: https://doi.org/10.1007/BF02613667