摘要:

Two questions of interest involving nonparametric multiple comparisons are considered. The first question concerns whether it is appropriate to use a multiple comparison procedure as a test of the equality of k treatments, and if it is, which procedure performs best as a test. Our results show that for smaller k values some multiple comparison procedures perform well as tests. The second question concerns whether a joint ranking or a separate ranking multiple comparison procedure performs better as a test and as a device for treatment separation. We find that the joint ranking procedure does slightly better as a test, but for treatment separation the answer depends on the situation.

ISSN:0361-0918    

DOI:10.1080/03610918308812325

出版商:Marcel Dekker, Inc.    

年代:1983

数据来源: Taylor

摘要:

An algorithm for combining data information and prior information, for the prediction of specific values, is presented. Important features include the concept of the fraction of information provided by the data and a method to choose weights to achieve a desired fraction of information.

ISSN:0361-0918    

DOI:10.1080/03610918308812326

出版商:Marcel Dekker, Inc.    

年代:1983

数据来源: Taylor

摘要:

The uniformly minimum variance unbiased estimate ofwhere σ1 and σ2 are the standard deviations of two normal populations is derived. Its properties are compared with those of the maximum likelihood estimate by means of Monte Carlo simulation. These comparisons reveal the superiority of the UMVU estimate for very small or very large values of this ratio.

ISSN:0361-0918    

DOI:10.1080/03610918308812327

出版商:Marcel Dekker, Inc.    

年代:1983

数据来源: Taylor

摘要:

Exact formulas for the expected value and variance of the median and trimmed mean are found as functions of the elements of a finite population under simple random sampling. A simulation study is performed to compare the performance of the median and trimmed mean versus the mean when sampling from various simulated finite populations. Finally, the asymptotic performance of these estimators, when sampling from infinite populations, is compared with the finite populations results.

ISSN:0361-0918    

DOI:10.1080/03610918308812328

出版商:Marcel Dekker, Inc.    

年代:1983

数据来源: Taylor

摘要:

In this article, the three-parameter I.G. distribution is standardized with zero mean and unit variance. The third standard moment α3is employed as the shape parameter. Tables of the cumulative probability function are given as a function of the standardized variate z, and of the shape parameter, α3. Various comparisons are made with the lognormal, Weibull, and gamma distributions.

ISSN:0361-0918    

DOI:10.1080/03610918308812329

出版商:Marcel Dekker, Inc.    

年代:1983

数据来源: Taylor

摘要:

The adequacy of Fisher's approximation to the large sample variance of an intraclass correlation is investigated in the context of family studies. It is found that the approximation is highly accurate in samples of moderately large size (≧ 30 families), and can also be used for significance-testing under a broad range of circumstances. The exact sampling of distribution of the intraclass correlation coefficient is also derived.

ISSN:0361-0918    

DOI:10.1080/03610918308812330

出版商:Marcel Dekker, Inc.    

年代:1983

数据来源: Taylor

摘要:

Five univariate divisive clustering methods for grouping means in analysis of variance are considered.Unlike pairwise multiple comparison procedures, cluster analysis has the advantage of producing non-overlapping groups of the treatment means. Comparisonwise Type I error rates and average numbers of clusters per experiment are examined for a heterogeneous set of 20 true treatment means with 11 embedded homogenous sub-groups of one or more treatments. The results of a simulation study clearly show that observed comparisonwise error rate and number of clusters are determined to a far greater extent by the precision of the experiment (as determined by the magnitude of the standard deviation) than by either the stated significance level or the clustering method used.

ISSN:0361-0918    

DOI:10.1080/03610918308812331

出版商:Marcel Dekker, Inc.    

年代:1983

数据来源: Taylor

ISSN:0361-0918    

DOI:10.1080/03610918308812332

出版商:Marcel Dekker, Inc.    

年代:1983

数据来源: Taylor

ISSN:0361-0918    

DOI:10.1080/03610918308812333

出版商:Marcel Dekker, Inc.    

年代:1983

数据来源: Taylor

摘要:

An algorithm is presented for computing the finite population parameters and the approximate probability values associated with a recently-developed class of statistical inference techniques termed multi-response randomized block permutation procedures (MRBP).

ISSN:0361-0918    

DOI:10.1080/03610918308812334

出版商:Marcel Dekker, Inc.    

年代:1983

数据来源: Taylor