Results 1 to 10 of about 1,377,894 (171)
Test-statistic inflation in methylome-wide association studies [PDF]
Recent years have seen a surge of methylome-wide association studies (MWAS). We observed that many of these studies suffer from test statistic inflation that is most likely caused by commonly used quality control (QC) pipelines not going far enough to ...
Jerry Guintivano +7 more
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We discuss the role that the null hypothesis should play in the construction of a test statistic used to make a decision about that hypothesis.
Jennifer A. Sinnott +2 more
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Likelihood-ratio test statistic for the finite-sample case in nonlinear ordinary differential equation models. [PDF]
Likelihood ratios are frequently utilized as basis for statistical tests, for model selection criteria and for assessing parameter and prediction uncertainties, e.g. using the profile likelihood. However, translating these likelihood ratios into p-values
Christian Tönsing +3 more
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Single Valued Neutrosophic Kruskal-Wallis and Mann Whitney Tests [PDF]
In this paper, Kruskal-Wallis test is extended to deal with neutrosophic data in single valued form using score, accuracy and certainty functions to calculate ranks of SVNNs, also MannWhitney test is extended to deal with same data type which makes it ...
Mahmoud Miari +2 more
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Polynomial Columns-Parameter Symmetry Model and its Decomposition for Square Contingency Tables
This study proposes a polynomial columns-parameter symmetry model for square contingency tables with the same row and column ordinal classifications. In the proposed model, the odds for all i < j that an observation will fall in row category i and column
Shuji Ando
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T test as a parametric statistic [PDF]
In statistic tests, the probability distribution of the statistics is important. When samples are drawn from population N (µ, σ2) with a sample size of n, the distribution of the sample mean X̄ should be a normal distribution N (µ, σ2/n).
Tae Kyun Kim
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Statistical Tests for Clonality [PDF]
Summary Cancer investigators frequently conduct studies to examine tumor samples from pairs of apparently independent primary tumors with a view to determine whether they share a “clonal” origin. The genetic fingerprints of the tumors are compared using a panel of markers, often representing loss of heterozygosity (LOH) at distinct genetic loci.
Begg, Colin B. +2 more
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An Evaluation of Testing Procedures for Event Study [PDF]
This paper analyses efficiency of short horizon event study methodology in general and efficiency of various test statistics based on price and trading volume in the period (Iranian calendar) 1380:1389-q1 (2240 days) applying simulation method.
Mohammad hosein Ghaemi +2 more
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More on the Supremum Statistic to Test Multivariate Skew-Normality
This review is about verifying and generalizing the supremum test statistic developed by Balakrishnan et al. Exhaustive simulation studies are conducted for various dimensions to determine the effect, in terms of empirical size, of the supremum test ...
Timothy Opheim, Anuradha Roy
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How to use χ2 test correctly——the likelihood ratio test and the implementation of SAS software
The purpose of this article was to introduce the likelihood ratio test and the SAS implementation. Specifically, three definitions of the likelihood ratio test statistics and six more commonly used likelihood ratio test statistics were introduced.
Hu Chunyan, Hu Liangping
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