Results 121 to 130 of about 79,999 (151)

A Wald-type test statistic based on robust modified median estimator in logistic regression models

Journal of Statistical Computation and Simulation, 2017
ABSTRACTIn this paper a new robust estimator, modified median estimator, is introduced and studied for the logistic regression model. This estimator is based on the median estimator considered in Hobza et al. [Robust median estimator in logistic regression. J Stat Plan Inference. 2008;138:3822–3840]. Its asymptotic distribution is obtained.
Tomáš Hobza, Nirian Martín, Leandro Pardo   +2 more
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Robust Wald‐type tests under random censoring

Statistics in Medicine, 2020
Randomly censored survival data are frequently encountered in biomedical or reliability applications and clinical trial analyses. Testing the significance of statistical hypotheses is crucial in such analyses to get conclusive inference but the existing likelihood‐based tests, under a fully parametric model, are extremely nonrobust against outliers in ...
Abhik Ghosh, Ayanendranath Basu, Leandro Pardo   +2 more
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Wald-type rank tests: A GEE approach

Computational Statistics & Data Analysis, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fan, Chunpeng, Zhang, Donghui
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A Wald-type test of quadratic parametric restrictions

Economics Letters, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lu, Zeng-Hua, King, Maxwell L.
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Robust Wald-type test statistics based on minimum C-divergence estimators

Journal of Statistical Computation and Simulation, 2020
Maji et al. [Robust statistical inference based on the C-divergence family. Ann Inst Stat Math. 2019;71:1289–1322] introduced the minimum C-divergence estimators and plugging them in the C-divergen...
Avijit Maji, Leandro Pardo
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A Note on Wald's Type Chi-squared Tests of Fit

Communications in Statistics - Theory and Methods, 2013
The Wald's method for constructing chi-squared tests of fit has been formulated more accurately. It is shown that Wald's type statistics will follow the central chi-squared distribution if and only if the limit covariance matrix of standardized frequencies will not depend on unknown parameters.
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Robust Wald-type methods for testing equality between two populations regression parameters: A comparative study under the logistic model

Computational Statistics & Data Analysis, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bianco, Ana Maria, Boente Boente, Graciela Lina, Alves Rodrigues, Isabel Maria   +2 more
openaire   +3 more sources