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Critical Values for a Sequential Test for Many Outliers
Author(s) -
Prescott P.
Publication year - 1979
Publication title -
journal of the royal statistical society: series c (applied statistics)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.205
H-Index - 72
eISSN - 1467-9876
pISSN - 0035-9254
DOI - 10.2307/2346808
Subject(s) - outlier , test (biology) , statistics , econometrics , mathematics , biology , paleontology
Summary Tables of critical values are provided for a sequential test for detecting up to three outliers in normal samples. The test procedure is based on the joint distribution of a series of Grubbs'‐type statistics applied to reducing samples. It is shown that the computations involve only the residuals in the analysis of the complete data so that reanalysis of samples of reducing size with the suspect observations removed is unnecessary.