
Accession Number : AD0882321
Title : Component Variance Methods for Establishing CEP Confidence Bounds Using Component Error Source Statistics.
Descriptive Note : Technical note 22 Jun 6926 Mar 70,
Corporate Author : STANFORD RESEARCH INST MENLO PARK CA SYSTEMS EVALUATION DEPT
Personal Author(s) : Malick, John D. ; Riedel, Alfred F.
Report Date : MAR 1971
Pagination or Media Count : 88
Abstract : Two methods for calculating upper confidence limits for a variance, Sigma (Subscript T, superscript 2), have been developed for the case where individual contributors to the total variance can be measured. The methods can reduce the upper boundor the number of testsconsiderably when two or more component variances are of roughly equal magnitude. Both methods are conservative (i.e., introduce additional confidence) and yield the classical, chisquare result when a single component variance is much larger than the others. The methods are valid even for cases where the component statistics are based on different numbers of tests and do not require a priori bounds of relative component contributions.
Descriptors : (*CIRCULAR ERROR PROBABLE, REENTRY VEHICLES), (*IMPACT PREDICTION, CONFIDENCE LIMITS), ERRORS, STATISTICAL DISTRIBUTIONS, GUIDANCE, CONTROL SYSTEMS, STATISTICAL TESTS, ACCURACY, MONTE CARLO METHOD, MULTIVARIATE ANALYSIS, STATISTICAL ANALYSIS, INEQUALITIES, ANALYSIS OF VARIANCE, TABLES(DATA), GRAPHICS.
Subject Categories : Statistics and Probability
Fire Control and Bombing Systems
Distribution Statement : APPROVED FOR PUBLIC RELEASE