Guy Ratel 2006 Metrologia 43 S244 doi:10.1088/0026-1394/43/4/S11
Guy Ratel
Show affiliationsIn the analysis of the results of an international comparison it is not exceptional that one or even several values are not in line with the others. It is often difficult to find good reasons—empirical or even statistical—for rejecting these data that may strongly influence the reference value. The median has been recognized as useful for the analysis of comparisons in the field of radioactivity as it avoids the need to cope with outliers. In this paper, the median is used as the key comparison reference value (KCRV) and the formulae necessary to evaluate its uncertainty and that of the degree of equivalence are given. In addition, the weighted median is also defined for use as the KCRV. Equivalent formulae are deduced for this estimator. This paper thus enlarges the range of concepts published previously for KCRV estimators.
Accelerators, beams and electromagnetism
Issue 4 (August 2006)
Received 15 November 2005
Published 4 August 2006
Guy Ratel 2006 Metrologia 43 S244
D J Wayne and Anne R Chamney 1969 Phys. Med. Biol. 14 9
R Sameni et al 2008 Physiol. Meas. 29 595
Marco M Caldarelli and Dietmar Klemm 2004 Class. Quantum Grav. 21 L17
L Y Shih 1974 J. Phys. A: Math. Nucl. Gen. 7 2109
Apollo Segal 1999 J. Phys. D: Appl. Phys. 32 991
Chris King and Peter Kennett 2002 Phys. Educ. 37 467
J S Forrest 1953 Br. J. Appl. Phys. 4 S37
N. Menci et al. 2005 ApJ 632 49
J Mitroy et al 1999 J. Phys. B: At. Mol. Opt. Phys. 32 2203