Results 21 to 30 of about 20,253,687 (309)

A Novel Approach for Fault Detection in Integrated Navigation Systems

open access: yesIEEE Access, 2020
Detecting subsystem faults quickly is critical to the accuracy and reliability of integrated navigation systems. This paper, therefore, proposes an effective approach based on the novel test statistic to detect faults.
Yixian Zhu, Ling Zhou
doaj   +1 more source

How to use χ2 test correctly——the score test and the implementation of SAS software

open access: yesSichuan jingshen weisheng, 2021
The purpose of this article was to introduce the score test and the SAS implementation. Concretely, there were five common forms of the score test statistics, namely the general score test statistic,the robust score test statistic,the residual score test
Hu Chunyan, Hu Liangping
doaj   +1 more source

The Ethics of Statistical Testing [PDF]

open access: yes, 2013
Signicance testing is the most widely used statistical tool for quantitative analysis in science and business. We want to explore in what sense signicance testing can help in making ethical decisions, and in what sense it may obstruct them. In the rst section of this paper, we analyze a simplied model of ethical decision-making, showing how consistency
Sprenger, Jan, Teira, David
openaire   +3 more sources

Signal Detection for Ambient Backscatter Communication with OFDM Carriers

open access: yesSensors, 2019
Ambient backscatter communication (AmBC) is considered as a promising future emerging technology. Several works on AmBC have been proposed thanks to its convenience and low cost property.
Thu L. N. Nguyen   +3 more
doaj   +1 more source

A New Matrix Statistic for the Hausman Endogeneity Test under Heteroskedasticity

open access: yesEconometrics, 2023
We derive a new matrix statistic for the Hausman test for endogeneity in cross-sectional Instrumental Variables estimation, that incorporates heteroskedasticity in a natural way and does not use a generalized inverse.
Alecos Papadopoulos
doaj   +1 more source

Error in statistical tests of error in statistical tests [PDF]

open access: yesBMC Medical Research Methodology, 2006
A recent paper found that terminal digits of statistical values in Nature deviated significantly from an equiprobable distribution, indicating errors or inconsistencies in rounding. This finding, as well as the discovery that a large percentage of p values were inconsistent with reported test statistics, led to a great deal of concern in the popular ...
openaire   +3 more sources

An Unsupervised Method of Change Detection in Multi-Temporal PolSAR Data Using a Test Statistic and an Improved K&I Algorithm

open access: yesApplied Sciences, 2017
In recent years, multi-temporal imagery from spaceborne sensors has provided a fast and practical means for surveying and assessing changes in terrain surfaces.
Jinqi Zhao   +5 more
doaj   +1 more source

A Wald-type test statistic for testing linear hypothesis in logistic regression models based on minimum density power divergence estimator [PDF]

open access: yes, 2016
In this paper a robust version of the classical Wald test statistics for linear hypothesis in the logistic regression model is introduced and its properties are explored.
A. Basu   +4 more
semanticscholar   +1 more source

Empirical $L^2$-distance test statistics for ergodic diffusions [PDF]

open access: yes, 2018
The aim of this paper is to introduce a new type of test statistic for simple null hypothesis on one-dimensional ergodic diffusion processes sampled at discrete times.
De Gregorio, Alessandro   +1 more
core   +2 more sources

A study on Freeman-Tukey test statistic under the symmetry model for square contingency tables

open access: yesCumhuriyet Science Journal, 2021
The symmetry model is the basic model in the analysis of square contingency tables. Multiple test statistics have been developed for the goodness of fit test. Freeman-Tukey test statistics is appropriate to be used in large samples.
Gokcen Altun
doaj   +1 more source

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