
Accession Number : AD0739442
Title : Correlation and the Performance of OneSided Cumulative Sum Tests.
Descriptive Note : Technical rept.,
Corporate Author : WISCONSIN UNIV MADISON DEPT OF STATISTICS
Personal Author(s) : Johnson,Richard A. ; Bagshaw,M.
Report Date : JAN 1972
Pagination or Media Count : 9
Abstract : The purpose of this note is to first show how the theory of weak convergence of cumulative sums to the Wiener Process can be employed to obtain a large sample approximation to the onesided cusum test proposed by Page (1955). This approximation seems to be quite accurate even for moderate sample sizes. Secondly, the authors employ the general theory to study the effect of correlation among the observations on the level and critical values. Particular attention is placed on the first order moving average and autoregressive models. In order to treat the sequential version of the test, we employ the same Wiener process approximation to study changes caused in average run length, under the null hypothesis, by the correlation structure. (Author)
Descriptors : (*STATISTICAL TESTS, CORRELATION TECHNIQUES), STATISTICAL PROCESSES, SAMPLING, STOCHASTIC PROCESSES, APPROXIMATION(MATHEMATICS)
Subject Categories : Statistics and Probability
Distribution Statement : APPROVED FOR PUBLIC RELEASE