Br. Cho et Md. Phillips, DESIGN OF THE OPTIMUM PRODUCT SPECIFICATIONS FOR S-TYPE QUALITY CHARACTERISTICS, International Journal of Production Research, 36(2), 1998, pp. 459-474
Citations number
33
Categorie Soggetti
Engineering,"Operatione Research & Management Science
Due to rapid advancement of automated inspection equipment, screening
(100% inspection) schemes have recently drawn increased attention. To
deal with the problem of determining the optimum specification limits
in screening schemes, most studies assume the normal distribution for
a quality characteristic. However, the practical distributions for the
smaller-the-better (S-type) quality characteristics are usually posit
ively skewed, and for this situation the gamma distribution is more ap
propriate. This paper introduces the new concept of a truncated quadra
tic loss function, derives the truncated statistics associated with th
e gamma-type quality characteristic, and presents a model for the most
economical product specification.