Β-RISK IN PROFICIENCY TESTING IN RELATION TO THE NUMBER OF PARTICIPANTS

Louis-Jean Hollebecq

Abstract

The Monte Carlo method was applied to PT schemes to investigate their efficiency. Probabilities that the computed z values are over 3 while the true value is less than 2 and that the computed z values are less than 2 while the true values are over 3 are computed for a series of situations: number of participants from 5 to 30, various ratios of repeatability over reproducibility and number of test results per participant, introduction or not of outliers with k from 3 to 10. For each situation, the probabilities of detecting true outliers and to trigger false alerts are discussed.

Keywords

Laboratory proficiency testing; Monte Carlo methods; efficiency of assessment

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IMEKO-TC11-2022-22.pdf

DOI

10.21014/tc11-2022.22

IMEKO TC

TC11 - Measurement in Testing, Inspection and Certification

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