Accession Number : AD0717337

Title :   On the Optimality of Some Multiple Comparison Procedures.

Descriptive Note : Technical rept.,

Corporate Author : WISCONSIN UNIV MADISON DEPT OF STATISTICS

Personal Author(s) : Spjotvoll,Emil

Report Date : SEP 1970

Pagination or Media Count : 33

Abstract : Optimality criteria formulated in terms of the power functions of the individual tests are given for problems where several hypotheses are tested simultaneously. Subject to the constraint that the expected number of false rejections is less than a given constant gamma when all null hypotheses are true, tests are found which maximize the minimum average power and the minimum power of the individual tests over certain alternatives. In the common situations in the analysis of variance this leads to application of multiple t-tests. Recommendations for choosing the value of gamma are given by relating gamma to the probability of no false rejections if all hypotheses are true. Based upon the optimality of the tests, a similar optimality property of joint confidence sets is also derived. (Author)

Descriptors :   (*STATISTICAL TESTS, POWER), MULTIPLE OPERATION, ANALYSIS OF VARIANCE, CONFIDENCE LIMITS, RANDOM VARIABLES, OPTIMIZATION, THEOREMS

Subject Categories : Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE