Results 11 to 20 of about 3,802,566 (313)

Testing for normality with neural networks [PDF]

open access: yesNeural Computing and Applications, 2021
In this paper, we treat the problem of testing for normality as a binary classification problem and construct a feedforward neural network that can successfully detect normal distributions by inspecting small samples from them. The numerical experiments conducted on small samples with no more than 100 elements indicated that the neural network which we
openaire   +2 more sources

Normality tests: a study of residuals obtained on time series tendency modeling

open access: yesExacta, 2023
The normality analysis in the distribution of residuals is a determining criterion to verify and validate a model. For example, in modeling financial time series by linear regression, the residuals should be independent of each other, identically ...
Fabian Corrêa Cardoso   +4 more
doaj   +1 more source

Testing normality: a GMM approach [PDF]

open access: yesJournal of Econometrics, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bontemps, Christian, Meddahi, Nour
openaire   +6 more sources

Comparison of power of modified Jarque-Bera normality tests and selected tests of normality

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2008
The aim of this paper is to modify the classical Jarque-Bera test and the robust Jarque-Bera test of normality. We use the median as an estimator instead of the mean in the classical Jarque-Bera test and in the robust Jarque-Bera test.
Luboš Střelec
doaj   +1 more source

An Extensive Comparisons of 50 Univariate Goodness-of-fit Tests for Normality

open access: yesAustrian Journal of Statistics, 2022
The assumption of normality needs to be checked for many statistical procedures, namely parametric tests, because their validity depends on it. Given the importance of this subject and the widespread development of normality tests, comprehensive ...
Stanislaus S. Uyanto
doaj   +1 more source

Comparison of normality test methods for some soil properties in the arid land of South Khorasan. [PDF]

open access: yesDesert, 2023
Statistical assumptions are the basis of many univariate and multivariate statistical tests. Normality is the most basic assumption of multivariate analysis in plant ecology.
M. Rostampour, F. Azarmi-Atajan
doaj   +1 more source

The Key Indicators of the Normality of Distribution

open access: yesInovacije u Nastavi, 2020
Statistics plays an important role in describing the results of various research. The basic role of statistical reasoning is to enable generalizations valid for the entire population to be made on the basis of certain quantitative characteristics of the ...
Zoran Č. Vidović   +1 more
doaj   +1 more source

Tests Based on Kurtosis for Multivariate Normality

open access: yesAustrian Journal of Statistics, 2019
In this paper, we first transform a multivariate normal random vector into a random vector with elements that are approximately independent standard normal random variables.
Danush Kanchana Wijekularathna   +2 more
doaj   +1 more source

On normality assumptions for claims in insurance

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2009
The aim of this paper is to discuss effects of deviations from hypothetized normality. Two models are considered, one is the first pension pillar (and we consider here very small samples, which plays some role at start of some pension system or at early ...
Milan Stehlík, Luboš Střelec
doaj   +1 more source

A New Goodness of Fit Test for Multivariate Normality and Comparative Simulation Study

open access: yesMathematics, 2021
The testing of multivariate normality remains a significant scientific problem. Although it is being extensively researched, it is still unclear how to choose the best test based on the sample size, variance, covariance matrix and others.
Jurgita Arnastauskaitė   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy