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• W2122735474 abstract "OF DISSERTATION Christopher Paul Saunders The Graduate School University of Kentucky 2006 EMPIRICAL PROCESSES FOR ESTIMATED PROJECTIONS OF MULTIVARIATE NORMAL VECTORS WITH APPLICATIONS TO E.D.F. AND CORRELATION TYPE GOODNESS OF FIT TESTS ABSTRACT OF DISSERTATIONOF DISSERTATION A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the College of Arts and Sciences at the University of Kentucky By Christopher Paul Saunders Lexington, KY Director: Dr. Constance L. Wood, Associate Professor of Statistics Lexington, KY 2006 Copyright © Christopher P. Saunders 2006 ABSTRACT OF DISSERTATIONOF DISSERTATION EMPIRICAL PROCESSES FOR ESTIMATED PROJECTIONS OF MULTIVARIATE NORMAL VECTORS WITH APPLICATIONS TO E.D.F. AND CORRELATION TYPE GOODNESS OF FIT TESTS Goodness-of-fit and correlation tests are considered for dependent univariate data that arises when multivariate data is projected to the real line with a data-suggested linear transformation. Specifically, tests for multivariate normality are investigated. Let { } i Y be a sequence of independent k-variate normal random vectors, and let 0 d be a fixed linear transform from k R to R . For a sequence of linear transforms ( ) { } 1 ˆ , , n d Y Y ... converging almost surely to 0 d , the weak convergence of the empirical process of the standardized projections from d to a tight Gaussian process is established. This tight Gaussian process is identical to that which arises in the univariate case where the mean and standard deviation are estimated by the sample mean and sample standard deviation (Wood, 1975). The tight Gaussian process determines the limiting null distribution of E.D.F. goodness-of-fit statistics applied to the process of the projections. A class of tests for multivariate normality, which are based on the Shapiro-Wilk statistic and the related correlation statistics applied to the dependent univariate data that arises with a data-suggested linear transformation, is also considered. The asymptotic properties for these statistics are established. In both cases, the statistics based on random linear transformations are shown to be asymptotically equivalent to the statistics using the fixed linear transformation. The statistics based on the fixed linear transformation have same critical points as the corresponding tests of univariate normality; this allows an easy implementation of these tests for multivariate normality. Of particular interest are two classes of transforms that have been previously considered for testing multivariate normality and are special cases of the projections considered here. The first transformation, originally considered by Wood (1981), is based on a symmetric decomposition of the inverse sample covariance matrix. The asymptotic properties of these transformed empirical processes were fully developed using classical results. The second class of transforms is the principal components that arise in principal component analysis. Peterson and Stromberg (1998) suggested using these transforms with the univariate Shapiro-Wilk statistic. Using these suggested projections, the limiting distribution of the E.D.F. goodness-of-fit and correlation statistics are developed." @default.
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• W2122735474 title "EMPIRICAL PROCESSES FOR ESTIMATED PROJECTIONS OF MULTIVARIATE NORMAL VECTORS WITH APPLICATIONS TO E.D.F. AND CORRELATION TYPE GOODNESS OF FIT TESTS" @default.
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