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A Sequential distribution‐free two‐sample grouped test with three possible decisions *
Author(s) -
Laan P.
Publication year - 1966
Publication title -
statistica neerlandica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 39
eISSN - 1467-9574
pISSN - 0039-0402
DOI - 10.1111/j.1467-9574.1966.tb00491.x
Subject(s) - mathematics , wilcoxon signed rank test , sobel operator , statistics , sample (material) , wald test , test (biology) , rank (graph theory) , distribution (mathematics) , table (database) , econometrics , sequential analysis , statistical hypothesis testing , computer science , combinatorics , artificial intelligence , mann–whitney u test , data mining , paleontology , mathematical analysis , edge detection , chemistry , chromatography , image (mathematics) , biology , image processing
Summary A sequential two‐sample grouped rank test with two possible decisions (onesided testing) developed by WILCOXON, RHODES and BRADLEY (1963) is generalized to a sequential test with three possible decisions (two‐sided testing) using a method given by SOBEL and WALD (1949). An auxiliary table with some moments concerning LEHMANN'S alternatives for the normal distribution, is given in order to facilitate the choice of the alternative hypotheses.