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Visualisation of proficiency test exercise results in Kiri plots
Authors:A V Harms
Institution:(1) National Physical Laboratory, Hampton Road, Teddington, TW11 0LW, UK
Abstract:A novel graphical method (‘Kiri plots’) for the presentation of proficiency test exercise results is presented. The Kiri plot visualises the evaluation of the proficiency test results based on three statistical tests (the z score, the zeta score and the relative uncertainty outlier test) by defining six zones including a central “in agreement” zone.
Keywords:Proficiency test exercise  Uncertainty  Data evaluation
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