대한안전경영과학회:학술대회논문집 (Proceedings of the Safety Management and Science Conference)
- 대한안전경영과학회 2012년 춘계학술대회
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- Pages.579-583
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- 2012
실험계획법에서 오차항의 가정 검토방안
Assessment of Properties of Error Terms in Design of Experiment
초록
The Design of Experiment (DOE) is a most practical technique when establishing an optimal condition for production technology in Six Sigma innovation project. This research proposes the assessment of properties of error terms, such as normality, equal variance, unbiasedness and independence. The properties of six nonparametric ranking techniques for checking normality assumption are discussed as well as run test which is used to identify the randomness, and to check unbiased assumption. Furthermore, Durbin-Watson (DW) statistics and ARIMA (p,d,q) process are discussed to identify the serial correlation.
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