Results 241 to 250 of about 10,169,362 (317)

Stratified sampling

Sampling, 2019
AbstractIn stratified sampling, the N population units are grouped into L strata, independent samples are selected from within each stratum, and unbiased estimation is achieved as a weighted average of stratum-specific estimates. Strata may be natural—pool, riffle, and run habitat unit types in a small stream—or strata may be constructed to ensure that
David G. Hankin, Michael S. Mohr, Ken B. Newman   +2 more
semanticscholar   +6 more sources

Stratified Sampling

The SAGE Encyclopedia of Research Design, 2008
John B. Heppner, David B. Richman, Steven E. Naranjo, Dale Habeck, Christopher Asaro, Jean-Luc Boevé, Johann Baumgärtner, David C. Schneider, Paris Lambdin, Ronald D. Cave, Brett C. Ratcliffe, John B. Heppner, Rebecca W. Baldwin, Clay W. Scherer, J. Howard Frank, James C. Dunford, Louis A. Somma, David. B. Richman, E. S. Krafsur, Allen Crooker, John B. Heppner, John L. Capinera, Fabián D. Menalled, Matt Liebman, John L. Capinera, Peter E. A. Teal, Marjorie A. Hoy, James E. Lloyd, John Sivinski, Whitney Cranshaw, John B. Heppner, John B. Heppner, Peter H. Adler, John B. Heppner, James H. Tsai, Pauline O. Lawrence, Jennifer M. Zaspel, John B. Heppner, John L. Capinera, John B. Heppner, Oscar E. Liburd, Erin M. Sarzynski, Antônio R. Panizzi, Jamie Ellis, Amanda Ellis, Mark Headings, Antônio R. Panizzi, Paul D. Scotti, Peter D. Christian, Lionel Stange, John B. Heppner, John B. Heppner, Rebecca Baldwin, Robert K. Vander Meer, Catherine A. Preston, Gard W. Otis, Joseph W. Noling, Marjorie A. Hoy, Drion G. Bouicas, Allen Sanborn, Antônio R. Panizzi, David W. Ragsdale, John B. Heppner, Anthony Rossi, Marc Branham, Andrei Sourakov, Divina Amalin, Paula E. Cushing, Patrick De Clercq, Daniel C. Peck, Vinton Thompson, David E. Bowles, John L. Capinera, Vincent G. Nealis, John L. Capinera, James E. Cilek, Waldemar Klassen, Erich Tilgner, Miguel Costas, Ángeles Vázquez, Antônio R. Panizzi, Jorge R. Rey, Boris C. Kondratieff, Norbert H. Haunerland, Daniel A. Hahn, Jeffrey C. Lord, Jeyaraney Kathirithamby, Allan T. Showler, Rufolf H. Scheffrahn, Robert L. Meagher, Maria Gallo, Fiona F. Hunter, John B. Heppner, John B. Heppner, John B. Heppner, Dan Gerling, Pierre Jolivet, John L. Capinera, Seiichi Moriya, Marjorie A. Hoy, Roger F. Hou, Pauline O. Lawrence, Beverly Burden, Kun Yan Zhu, George Hangay   +104 more
semanticscholar   +6 more sources

Stratified Sampling

Encyclopedic Dictionary of Archaeology, 2021
Yan Lu, Sharon L. Lohr
semanticscholar   +3 more sources

Mean estimation in the simultaneous presence of measurement errors and non-response using optional RRT models under stratified sampling

Journal of Statistical Computation and Simulation, 2021
In this study, we discuss mean estimation of sensitive variables in the presence of measurement errors and non-response using Stratified Random Sampling, and present a comparison of the proposed estimator with some existing estimators.
Qi Zhang, Sadia Khalil, Sat Gupta
semanticscholar   +1 more source

Some efficient classes of estimators under stratified sampling

Communications in Statistics - Theory and Methods, 2021
The essence of this paper is to propose some efficient combined and separate classes of estimators for estimating population mean under stratified simple random sampling.
Shashi Bhushan, Anoop Kumar, Saurabh Singh   +2 more
semanticscholar   +1 more source

Estimation of mean of a sensitive variable using efficient exponential-type estimators in stratified sampling

Journal of Statistical Computation and Simulation, 2021
Sousa et al. [Improved mean estimation of a sensitive variable using auxiliary information in stratified sampling. J Stat Manage Syst. 2014;17(5–6):503–518] presented a ratio estimator for mean estimation in stratified sampling using an additive ...
Iram Saleem, Aamir Sanaullah
semanticscholar   +1 more source

An efficient family of robust-type estimators for the population variance in simple and stratified random sampling

Communications in Statistics - Theory and Methods, 2021
In this study, we propose the robust ratio-type estimator of finite population variance considering the minimum covariance determinant (MCD) and the minimum volume ellipsoid (MVE) robust covariance matrices in simple and stratified random sampling.
T. Zaman, H. Bulut
semanticscholar   +1 more source