On some improved class of estimators by using stratified ranked set sampling

S Bhushan, A Kumar, U Shahzad, AI Al-Omari… - Mathematics, 2022 - mdpi.com
In this manuscript, we propose the combined and separate difference and ratio type
estimators of population mean using stratified ranked set sampling. Additionally, several well …

[HTML][HTML] Different classical estimation methods using ranked set sampling and data analysis for the inverse power Cauchy distribution

AS Hassan, N Alsadat, M Elgarhy, C Chesneau… - Journal of Radiation …, 2023 - Elsevier
A recent two-parameter distribution that offers additional flexibility in modeling a real lifetime
dataset is the inverse power Cauchy distribution (IPCD). The IPCD is user-friendly and …

Some characterizations of continuous symmetric distributions based on extropy of record values

N Gupta, SK Chaudhary - Statistical Papers, 2024 - Springer
Using different extropies of k record values various characterizations are provided for
continuous symmetric distributions. The results are in addition to the results of Ahmadi (Stat …

Improved estimation of population distribution function using twofold auxiliary information under simple random sampling

S Ahmad, S Hussain, A Al Mutairi, M Kamal… - Heliyon, 2024 - cell.com
In this article, our main aim is to suggest enhanced families of estimators for estimating the
population distribution function (DF) using twofold auxiliary evidence within the framework of …

Evaluating the performance of memory type logarithmic estimators using simple random sampling

S Bhushan, A Kumar, A Alrumayh, HA Khogeer… - Plos one, 2022 - journals.plos.org
In survey research, various types of estimators have been suggested that consider only the
current sample information to compute the unknown population parameters. Therefore, we …

On estimating the area under the ROC curve in ranked set sampling

M Mahdizadeh, E Zamanzade - Statistical Methods in …, 2022 - journals.sagepub.com
In medical research, the receiver operating characteristic curve is widely used to evaluate
accuracy of a continuous biomarker. The area under this curve is known as an index for …

[PDF][PDF] Logarithmic type predictive estimators under simple random sampling

S Bhushan, A Kumar, MT Akhtar, SA Lone - AIMS Mathematics, 2022 - aimspress.com
This study introduces a novel predictive estimation approach of the population mean based
on logarithmic type estimators as predictor under simple random sampling. The bias and …

Smooth estimation of the area under the ROC curve in multistage ranked set sampling

M Mahdizadeh, E Zamanzade - Statistical Papers, 2021 - Springer
The receiver operating characteristic (ROC) curve is an important tool for assessing the
discrimination power of a continuous biomarker. The area under the ROC curve is a well …

Enhanced estimation of the population mean using two auxiliary variables under probability proportional to size sampling

S Ahmad, E Zahid, J Shabbir, M Aamir… - Mathematical …, 2023 - Wiley Online Library
In some situations, the population of interest differs significantly in size, for example, in a
medical study, the number of patients having a specific disease and the size of health units …

An improved class of estimators for estimation of population distribution functions under stratified random sampling

S Ahmad, J Shabbir, W Emam, E Zahid, M Aamir… - Heliyon, 2024 - cell.com
The main objective of the current study is to suggest an enhanced family of log ratio-
exponential type estimators for population distribution function (DF) using auxiliary …