품질통계에서 자유도 개념 및 유형 Concept and Type for Degree of Freedom in Quality Statistics
최성운
- 언어KOR
- URLhttp://db.koreascholar.com/Article/Detail/245514
대한안전경영과학회지
제9권 제6호
(2007.12)
pp.193-196
pp.193-196
대한안전경영과학회
(Korea Safety Management & Science)
초록
This paper presents real examples of quality statistics for users to easily understand the concept and purpose for obtaining the degree of freedom. Moreover degree of freedom by Satterwaite can be used for linear combinations of unbiased variance. Finally effective degree of freedom by Welch-Satterthwaite is applicable to obtain expanded uncertainty considering type A and type B uncertainty.
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