Results 1 to 10 of about 3,802,566 (313)

Min-max approach for comparison of univariate normality tests. [PDF]

open access: yesPLoS ONE, 2021
Comparison of normality tests based on absolute or average powers are bound to give ambiguous results, since these statistics critically depend upon the alternative distribution which cannot be specified. A test which is optimal against a certain type of
Tanweer Ul Islam
doaj   +2 more sources

Application of a Hermite-based measure of non-Gaussianity to normality tests and independent component analysis [PDF]

open access: yesFrontiers in Neuroinformatics, 2023
In the analysis of neural data, measures of non-Gaussianity are generally applied in two ways: as tests of normality for validating model assumptions and as Independent Component Analysis (ICA) contrast functions for separating non-Gaussian signals ...
Parul Jain   +4 more
doaj   +2 more sources

Descriptive statistics and normality tests for statistical data [PDF]

open access: yesAnnals of Cardiac Anaesthesia, 2019
Descriptive statistics are an important part of biomedical research which is used to describe the basic features of the data in the study. They provide simple summaries about the sample and the measures.
Prabhaker Mishra   +5 more
doaj   +2 more sources

Assessing the robustness of normality tests under varying skewness and kurtosis: a practical checklist for public health researchers [PDF]

open access: yesBMC Medical Research Methodology
Background Many statistical methods used in public health research, namely t-tests, ANOVA correlation and regression, rely on the assumption of normality. Violation of the normality assumption can severely lead to biased parameter estimates, reduced test
Asha Kamath   +2 more
doaj   +2 more sources

Normality tests Procedure with power comparison [PDF]

open access: yesالمجلة العلمية للاقتصاد والتجارة, 2022
     The condition of normality is required for Standard statistical procedures. the results of these methods will be in. improper when the normality in not satisfied.
Abd-Elwahab Hagag
doaj   +1 more source

Managing the Assumption of Normality within the General Linear Model with Small Samples: Guidelines for Researchers Regarding If, When and How. [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2023
Academic textbooks, statistical literature, and publication guidelines provide conflicting, ambiguous and often incomplete answers to the question of how researchers should handle the normality assumption for classical general linear model tests when ...
Zygmont, Conrad Stanisław
doaj   +1 more source

An Exhaustive Power Comparison of Normality Tests

open access: yesMathematics, 2021
A goodness-of-fit test is a frequently used modern statistics tool. However, it is still unclear what the most reliable approach is to check assumptions about data set normality. A particular data set (especially with a small number of observations) only
Jurgita Arnastauskaitė   +2 more
doaj   +1 more source

Comparison of Normality Tests in Terms of Sample Sizes under Different Skewness and Kurtosis Coefficients

open access: yesInternational Journal of Assessment Tools in Education, 2022
This study aims to compare normality tests in different sample sizes in data with normal distribution under different kurtosis and skewness coefficients obtained simulatively.
Süleyman Demir
doaj   +1 more source

APPLICATION OF THE BOOTSTRAP METHOD ON A LARGE INPUT DATA SET - CASE STUDY ON THE WESTERN PART OF THE SAVA DEPRESSION

open access: yesRudarsko-geološko-naftni Zbornik, 2021
The bootstrap method is a nonparametric statistical method that through the resampling of an input data set provides the ability to obtain a new data set that is normally distributed.
Josip Ivšinović, Nikola Litvić
doaj   +1 more source

Modelling Long-Term Monthly Rainfall Variability in Selected Provinces of South Africa: Trend and Extreme Value Analysis Approaches

open access: yesHydrology, 2021
Extreme rainfall events have made significant damages to properties, public infrastructure and agriculture in some provinces of South Africa notably in KwaZulu-Natal and Gauteng among others.
Vusi Ntiyiso Masingi, Daniel Maposa
doaj   +1 more source

Home - About - Disclaimer - Privacy