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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Confirmation of reterence value using uncertainty of multiple measurements

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2002, v.15 no.6, pp.580-583




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Abstract

New approach is developed employing the overall uncertainty obtained from multiple measurements to evaluate the statistical significance for the difference between a given reference value and its measured value determined in a lab. The overall uncertainty is determined by separate combinations of the uncertainties arising from systematic and random effects. It is shown that the uncertainty term in regular t-test can be underestimated by n measurements.

keywords
Reference Material, Uncertainty, Reference Value, GUM, Correlation


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