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CONFIDENCE LIMITS ARITHMETIC MEANS SERIES MEASUREMENTS [1 record]

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Record 1 1993-12-02

English

Subject field(s)
  • Metrology and Units of Measure
DEF

The extreme errors (positive and negative) for which the probability of their not being exceeded by the error of the arithmetic mean of a series of measurements has a value P such that the difference (1 - P) can be considered negligible.

OBS

1. In general the limiting errors of the arithmetic mean of a series of measurements are calculated in the same way as those relating to a single measurement but using the standard deviation of the mean sr. 2. For a small number of measurements, values of t calculated according to Student's distribution are used.

French

Domaine(s)
  • Unités de mesure et métrologie
DEF

Erreurs extrêmes (en plus et en moins) dont la probabilité de ne pas être dépassées par l'erreur sur la moyenne arithmétique d'une série de mesurages a une valeur P telle que l'on peut estimer que la différence 1 - P est négligeable.

OBS

1. On calcule en général les erreurs limites de la moyenne arithmétique d'une série de mesurages de la même façon que celles relatives à un seul mesurage mais en utilisant l'écart moyen quadratique sr. 2. Pour un petit nombre de mesurages, on se sert des valeurs t calculées selon la distribution de Student.

OBS

erreurs limites de la moyenne arithmétique d'une série de mesurages: recommandation internationale de la Troisième Conférence Internationale de Métrologie Légale, 1968.

Spanish

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