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作者:TARONE, RE
摘要:Using the C(.alpha.) procedure of Neyman (1959), tests were derived for the goodness of fit of the binomial distribution which are asymptotically optimal against generalized binomial alternatives proposed by Altham (1978) and Kupper and Haseman (1978). The C(.alpha.) tests optimal against correlated binomial alternatives, beta-binomial alternatives and a general class of mixture alternatives suggested by Wisniewski (1968) are shown to be closely related to the binomial variance test. A numeric...
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作者:RAMSEY, FL
摘要:With data from line transect surveys, the pattern of distances at which animals [wildlife] are detected provides the information for estimating the area which the observer effectively surveys. A parametric structure is suggested for the problem in which this area is characterized by an effective 1/2 width parameter which appears as a scale parameter in the distributions of detection distances. Suggestions for classes of models are given, different members of a class giving different shapes to ...
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作者:CRESSIE, N
摘要:The family of statistics based on mth-order gaps from a uniform sample, obtained by summing a suitably regular function of each gap, is investigated. Holst (1979) established asymptotic normality together with explicit expressions for the mean and variance. This is extended to samples from distributions whose perturbations from uniformity shrink as sample size grows. From these results, Pitman asymptotic relative efficiencies can be calculated, and it is shown that the sum of squares of gaps i...
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作者:KOCHAR, SC
摘要:Let F(x) and G(x) be the absolutely continuous distribution functions of 2 life distributions with rF(x) and rG(x) as their respective hazard rates. In the class of increasing failure rate distributions, one-sided scale as well as one-sided location alternatives imply that 1 hazard rate is uniformly smaller than the other. A new distribution-free test for testing H0: rF(x) = rG(x) against HA: rF(x) .ltoreq. rG(x) is proposed. The test possesses robust asymptotic efficiency properties.
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作者:ROTHERY, P
摘要:A nonparametric measure of intraclass correlation based on the probability of certain types of concordances among the observations and which can be estimated from ranked data is proposed. One estimator whose variance can be estimated in an unbiased way is asymptotically normally distributed. Properties of the measure and its estimator are studied for a normal model; the method provides a relatively powerful test of the null hypothesis of zero intraclass correlation in a normal population.
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作者:GREEN, JR
摘要:Given independent samples from the continuous distributions F(x) and G(y), which may be different, using the Wilcoxon or Mann-Whitney test is considered, with the normal approximation, to test between H0:pr (X > Y) = p0 and H1:Pr (X > Y) > p0, especially with p0 = 1/2. A modification of the Wilcoxon test due to Potthoff and to Zaremba is considered. Additional restrictions are introduced to give improved tests. Considerations of asymptotic relative efficiency and Monte Carlo studies show that ...