Results 41 to 50 of about 1,402,559 (308)

Simulating chi-square data through algorithms in the presence of uncertainty

open access: yesAIMS Mathematics
This paper presents a novel methodology aimed at generating chi-square variates within the framework of neutrosophic statistics. It introduces algorithms designed for the generation of neutrosophic random chi-square variates and illustrates the ...
Muhammad Aslam , Osama H. Arif
doaj   +1 more source

Chi-square test and its application in hypothesis testing

open access: yesJournal of the Practice of Cardiovascular Sciences, 2015
In medical research, there are studies which often collect data on categorical variables that can be summarized as a series of counts. These counts are commonly arranged in a tabular format known as a contingency table.
Rakesh Rana, Richa Singhal
doaj   +1 more source

Influence Analysis of Robust Wald-type Tests [PDF]

open access: yes, 2015
We consider a robust version of the classical Wald test statistics for testing simple and composite null hypotheses for general parametric models. These test statistics are based on the minimum density power divergence estimators instead of the maximum ...
Ghosh, Abhik   +3 more
core   +3 more sources

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed   +5 more
wiley   +1 more source

Empirical likelihood confidence regions of the parameters in a partially single-index varying-coefficient model

open access: yesOpen Mathematics, 2019
In this paper, we investigate a partially single-index varying-coefficient model, and suggest two empirical log-likelihood ratio statistics for the unknown parameters in the model.
Xiang Xing, Liu Wanrong
doaj   +1 more source

Chi-square, Student and Fisher-Snedecor Statistical Distributions and Their Application

open access: yesСтатистика України, 2018
The Chi-square distribution is the distribution of the sum of squared standard normal deviates. The degree of freedom of the distribution is equal to the number of standard normal deviates being summed. For the first time this distribution was studied by
F. V. Motsnyi
doaj   +1 more source

The Chi-Square Test of Distance Correlation [PDF]

open access: yesJournal of Computational And Graphical Statistics, 2019
Distance correlation has gained much recent attention in the data science community: the sample statistic is straightforward to compute and asymptotically equals zero if and only if independence, making it an ideal choice to discover any type of ...
Cencheng Shen, J. Vogelstein
semanticscholar   +1 more source

Parent‐to‐Child Information Disclosure in Pediatric Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite professional consensus regarding the importance of open communication with pediatric cancer patients about their disease, actual practice patterns of disclosure are understudied. Extant literature suggests a significant proportion of children are not told about their diagnosis/prognosis, which is purported to negatively ...
Rachel A. Kentor   +12 more
wiley   +1 more source

Tail Properties of Pearson Statistics Distributions

open access: yesAustrian Journal of Statistics, 2016
By means of exact computation of Pearson statistics distributions we illustrate some differences between their tails and tails of corresponding chi-square distributions.
Marina V. Filina, Andrew M. Zubkov
doaj   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou   +10 more
wiley   +1 more source

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