Analysis of three tests for one or two outliers

Douglas M. Hawkins

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Summary  Three well‐known test statistics for the precense of two outliers are studied from the points of views of exact null distribution and power. In a sample case, it is shown that the Murphy two outlier statistic may suffer from masking. A recursive version of the Pearson‐Chandrasekar test is shown to perform well. Copyright © 1978, Wiley Blackwell. All rights reserved

Original languageEnglish
Pages (from-to)137-148
Number of pages12
JournalStatistica Neerlandica
Issue number3
StatePublished - 1978


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