Notes on two sample tests for partially correlated (paired) data

HM Samawi, R Vogel - Journal of Applied Statistics, 2014 - Taylor & Francis
We provide several methods to compare two Gaussian distributed means in the two sample
location problems under the assumption of partially dependent observations. Simulation …

Inference on overlap coefficients under the Weibull distribution: Equal shape parameter

O Al-Saidy, HM Samawi, MF Al-Saleh - ESAIM: Probability and …, 2005 - cambridge.org
In this paper we consider three measures of overlap, namely Matusia's measure ρ, Morisita's
measure λ and Weitzman's measure Δ. These measures are usually used in quantitative …

A nonparametric test of symmetry based on the overlapping coefficient

HM Samawi, A Helu, R Vogel - Journal of Applied Statistics, 2011 - Taylor & Francis
In this paper, we introduce a new nonparametric test of symmetry based on the empirical
overlap coefficient using kernel density estimation. Our investigation reveals that the new …

Inference on overlapping coefficients in two exponential populations using ranked set sampling

HM Samawi, MF Al-Saleh - Communications for Statistical …, 2008 - koreascience.kr
We consider using ranked set sampling methods to draw inference about the three well-
known measures of overlap, namely Matusita's measure $\rho $, Morisita's measure …

On Inference of Overlapping Coefficients in Two Lomax Populations Using Different Sampling Methods

A Helu, H Samawi - Journal of Statistical Theory and Practice, 2011 - Taylor & Francis
This paper investigates point and interval estimation for some well-known measures of
overlap. Two types of sampling procedures, namely, Simple Random Sample and Ranked …

On estimation of overlapping measures for exponential populations under progressive first failure censoring

A Helu, H Samawi - Quality Technology & Quantitative …, 2019 - Taylor & Francis
Overlapping coefficient is a direct measure of similarity between two distributions which is
recently becoming very useful in many fields of applications including microarray analysis …

Nonparametric overlap coefficient estimation using ranked set sampling

A Helu, H Samawi, R Vogel - Journal of Nonparametric Statistics, 2011 - Taylor & Francis
Ranked set sampling is used to produce a nonparametric kernel estimator of the overlap
measure. Some asymptotic properties of the kernel estimator of overlap measure are …

Mean functional estimation with non-ignorable missing data using influential exponential tilting resampling approach

H Samawi, H Rochani, K Gohil - Journal of Statistical Computation …, 2022 - Taylor & Francis
Inference with incomplete data, especially non-ignorable, is one of the challenging tasks in
data analysis. Moreover, it is well known that results obtained from incomplete data are …

Model parameters estimation with non-ignorable missing data using influential exponential tilting resampling approach

K Gohil, H Samawi, H Rochani, L Yu - Journal of Statistical …, 2023 - Taylor & Francis
This paper proposes to extend [1] mean functional estimation method based on the
influential exponential tilting resampling approach (ITRA) to address non-ignorable missing …

On the inference of partially correlated data with applications to public health issues

HM Samawi, R Vogel - Innovative Statistical Methods for Public Health …, 2015 - Springer
Correlated or matched data is frequently collected under many study designs in applied
sciences such as the social, behavioral, economic, biological, medical, epidemiologic …