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Likelihood techniques for interlaboratory calibration in the national stream survey
Author(s) -
Permutt Thomas,
Edland Steven D.,
Moezzi Mithra,
Grosser Stella C.
Publication year - 1991
Publication title -
journal of chemometrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.47
H-Index - 92
eISSN - 1099-128X
pISSN - 0886-9383
DOI - 10.1002/cem.1180050316
Subject(s) - quality assurance , calibration , linearity , computer science , statistics , econometrics , quality (philosophy) , data mining , mathematics , engineering , philosophy , operations management , external quality assessment , electrical engineering , epistemology
Techniques for testing for and estimating relative bias between two laboratories are developed and applied to a survey of the chemistry of streams in the United States. The design of the quality assurance program allows estimation of linear corrections for bias as well as testing of the hypothesis of linearity. Designs of this type are useful, but improvements are suggested.