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겉보기 비율과 참비율에 관한 연구

Apparent and True Proportions

  • 장경 (단국대학교 산업공학과)
  • Chang, Kyung (Department of Industrial Engineering, DANKOOK University)
  • 투고 : 2016.04.11
  • 심사 : 2016.06.22
  • 발행 : 2016.06.30

초록

The ratio which we usually use in producing products is nonconforming proportion or percent defective. As our modern society develops, we cannot but meet another proportion in legal, managerial, and medical areas where our human beings might commit various kinds of errors though they do not want them. In this paper we will generally call the ratio 'proportion.' When the size of such proportion as percent defective is observed by persons, it is not true proportion but apparent proportion because it has been observed with human or situational errors. Past studies have not systematically covered the analysis of relations between such proportions and type 1 and 2 error, but this paper analyses and derives such various relations, and it suggests the guideline as sixteen properties for utilization and sensitive analysis of the relations. Current paper's consideration of apparent proportion in addition to true proportion as our familiar concept will open and widen existing academic and application areas where people have mainly built societal, scientific and engineering rules and methods based only on true proportion.

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참고문헌

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