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作者：FISHER, NI; LEWIS, T
作者单位：Open University - UK
摘要：This paper considers the problem of forming a pooled estimate of the common mean direction of several circular or spherical populations with possibly differing dispersions, based on samples from each population. Methods for obtaining approximate confidence cones for the mean direction of a single circular or spherical population are developed, than applied to several examples [including paleo climatology].
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作者：BERGMAN, SW; TURNBULL, BW
作者单位：Cornell University
摘要：The scheduling of inspection times in a life testing experiment when testing is destructive is considered. One application is to animal carcinogenicity tests where it is desired to find serial sacrifice schedules which allow efficient estimation of the onset time distribution for a tumor which is assumed irreversible, nonlethal and occult, i.e. detectable only at death. A class of designs are introduced and their properties are discussed. It is shown how to construct a design in this class tha...
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作者：WORSLEY, KJ
摘要：A simple iterative procedure is found for the exact null and alternative distributions of likelihood ratio, cumulative sum and related statistics for testing for a change in probability of a sequence of independent binomial random variables. The likelihood ratio test is slightly less powerful than the cumulative sum test near the middle of the sequence, but that the likelihood ratio test is much more powerful near the ends. An example from epidemiology is used. Under certain conditions the cum...
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作者：FISHER, NI; LEE, AJ
作者单位：University of Auckland
摘要：A coefficient to measure association between angular variables is discussed, its asymptotic distribution found, and its properties developed. Comparisons with other statistics in current use are made, and some examples given [including one on blood pressure].
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作者：GUPTA, SC; JONES, B
摘要：Methods are given for the construction of equireplicate balanced block designs with unequal block sizes using group divisible designs. Balanced designs in which treatments are replicated 25 times or less are tabulated. The plans of these designs can be readily obtained using existing published sources. Some of the designs given here are even smaller than those in balanced incomlete blocks.
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作者：EAVES, DM
摘要：A nonlinear regression model is applied to several sets of enzyme kinetics data, treating the entire regression vector as the parameter of interest. The resulting marginal posterior distributions are presented alongside the usual Student''s t posterior distributions implicit in the usual linearized regression. The prior distribution used is that which is minimally informative about the regression vector. In the special case of the linear model this procedure leads to the prior density 1/.sigma...
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作者：SELLKE, T; SIEGMUND, D
作者单位：Stanford University
摘要：For the proportional hazards model of survival analysis, an appropriate large-sample theory is developed for cases of staggered entry and sequential analysis. The principal techniques involve an approximation of the score process by a suitable martingale and a random rescaling of time based on the observed Fisher information. The score process of the partial likelihood and the maximum partial likelihood estimator behave asymptotically like Brownian motion.
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作者：ROCKE, DM
摘要：A common procedure in testing analytical methods is to send a portion of each of a number of samples to each of several laboratories. The results of such a study are submitted to statistical analysis to determine the 2 important variance components in the problem: replication error and laboratory bias. Outliers are relatively common in these data both among laboratory effects and among the residuals. A method of analysis for interlaboratory studies that is robust to the existence of outliers a...
