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  5. FISHER CRITERION HOMOGENEITY CHECK AS AN ADDITIONAL INSTRUMENT OF CONTROL IN TIME OF REPEATABILITY CONDITIONS CHECK

FISHER CRITERION HOMOGENEITY CHECK AS AN ADDITIONAL INSTRUMENT OF CONTROL IN TIME OF REPEATABILITY CONDITIONS CHECK

Volodarskyy E.T., Kozyr E.V.
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Repeatability limit use for repeatability estimation, a value which with confidence probability 95% is less than absolute value of difference between result of two measurements (or tests) which were received under repeatability conditions. However, when the small numbers of samples were used – two samples comparison with two results within criterion Fisher use are recommended to be able to check homogeneity of variances in compares samples.
Keywords: fisher criterion, repeatability conditions, small samples, homogeneity of variances, repeatability standard deviation, repeatability limit