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박양길,김용수,김민,염봉진,이팔훈 한국경영과학회 2001 한국경영과학회 학술대회논문집 Vol.- No.1(1)
Developed in this article is an approximate formula for calculating percent defectives directly from C_(P) for a normally distributed quality characteristic. The formula is based on a logistic regression model and the error ratios over the range (C_(P) = 0.59, 2.47) are less than 3.5%. The formula can replace complicated tables, or can be utilized for an optimization problem in which a closed-form expression is necessary.