Accession Number : AD0711801

Title :   AN ALTERNATIVE TO AN F-TEST ON VARIANCES.

Descriptive Note : Technical rept.,

Corporate Author : SOUTHERN METHODIST UNIV DALLAS TEX DEPT OF STATISTICS

Personal Author(s) : Wheeler,Donald Jefferson

Report Date : 12 JUL 1970

Pagination or Media Count : 69

Abstract : The usual F-test on variances has been shown to be non-robust when the underlying populations are not normally distributed. An alternative test for equality of variances is developed and compared with the F-test by means of sampling experiments. This alternative test is shown to be less seriously affected by non-normal populations than is the F-test and a brief comparison of this alternative test and a modified F-test developed earlier is given. (Author)

Descriptors :   (*ANALYSIS OF VARIANCE, STATISTICAL TESTS), POPULATION(MATHEMATICS), PROBABILITY, DISTRIBUTION THEORY, SAMPLING, MATRICES(MATHEMATICS), TABLES(DATA), DISTRIBUTION FUNCTIONS, RANDOM VARIABLES

Subject Categories : Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE