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作者：CSORGO, S; HORVATH, L
摘要：In the Koziol-Green (1976) model of random censorship the survival distribution of the censoring variables is some power, the censoring parameter, of the survival distribution of the lifetimes. Using a strong approximation result of Burke, Csorgo and Horvath, empirical exact confidence bands were constructed for the life distribution of the censored variable and a randomly Efron-transformed variant of the usual product-limit process is shown to converge weakly to the Brownian motion process on...
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作者：LAGAKOS, SW; REID, N
作者单位：University of British Columbia
摘要：An estimator is proposed for the convolution of distribution functions, based on samples with some right-censored observations. The asymptotic variance of the estimator is calculated and the method is illustrated with a set of cancer data [i.e., Hodgkin''s disease].
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作者：CHAMBERS, RL; HEATHCOTE, CR
作者单位：Australian National University
摘要：The paper presents a large sample method for estimating the slope parameter in a linear model by minimizing a loss function related to the empirical cumulant generating function of the error distribution. A family of estimators, indexed by a real parameter, is obtained and consistency and asymptotic normality established. The optimum member of the family is that which has minimum variance with respect to the parameter. This minimization together with a characterization result for the normal di...
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作者：DURBIN, J
摘要：A simple method of obtaining asymptotic expansions for the densities of sufficient estimators is described. It is an extension of the one developed by Barndorff-Nielsen and Cox (1979) for exponential families. A series expansion in powers of n-1 is derived of which the 1st term has an error of order n-1 which can effectively be reduced to n-3/2 by renormalization. The results obtained are similar to those given by Daniels''s (1954) saddlepoint method but the derivations are simpler. A brief tr...
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作者：DURBIN, J
摘要：Approximations are found to the joint distributions of noncircular and circular partial serial correlation coefficients calculated from residuals from regression on Fourier series. Results for coefficients calculated from deviations from the true mean and from the sample mean are obtained as special cases. When the observations are independent the partial coefficients are approximately independently distributed in .beta.- distributions that are the same for all odd-order coefficients and the s...
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作者：COX, DR
摘要：Non-Bayesian inference is considered for a scalar unknown parameter. When the minimal sufficient statistic is of dimension > 1 and no suitable exactly ancillary statistic is available, a statistic with a certain property of local ancillarity is calculated and the conditional distribution given that statistic is evaluated by Edgeworth expansion. The resulting distribution is used to calculate significance tests and confidence intervals which have desired probability levels to O(1/n), where n is...
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作者：MUIRHEAD, RJ; WATERNAUX, CM
作者单位：Harvard University
摘要：An asymptotic theory for canonical correlation analysis is given for multivariate populations with finite-4th moments. Asymptomatic distributions of the sample canonical correlation coefficients and of statistics used for testing hypotheses about the population coefficients involve the 4th order cumulants of the parent population and are sensitive to departures from normality. These asymptotic distributions have surprisingly simple forms in the case of elliptical populations; here a modified t...
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作者：NAGARSENKER, PB
摘要：The exact distribution of the likelihood ratio statistic for testing the equality of p 1-parameter exponential populations is obtained in a computational form. Tables of 5% and 1% significance points are given for p = 3(1)6. An asymptotic expansion in terms of a .beta.-distribution is also given. (Applicability to clinical trials in patients with acute disease and to accident data involving workers is discussed].
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作者：RAY, SK; SAHAI, A
摘要：Two-parameter families of ratio-type and product-type estimators are proposed for a finite population mean based on simple random samples of observations on the variable of interest and a concomitant variable. The families contain estimators which have lower mean square error in practical situations than the usual ratio, product and sample mean estimators.
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作者：COSTELLO, P; WOLFE, DA
摘要：A distribution-free treatments vs. control multiple comparisons procedure is proposed. It is based on the control sample median, and is appropriate when the control sample observations are easy and relatively inexpensive to collect, while the treatments data are costly and/or difficult to obtain. For this procedure the control sample has a fixed sample size and the treatments have random sample sizes determined by a truncated inverse binomial sequential sampling scheme. Properties of the proce...
