Results 31 to 40 of about 341 (76)

O modelo logspline aplicado aos transectos lineares. [PDF]

, 2005
A teoria denominada logspline density estimation, permite estimar o logaritmo de uma função densidade de probabilidade utilizando-se splines cúbicos, estima ção por máxima verosimilhança, e adição e remoção de nós seleccionados pelas estatísticas de Rao ...
Alpizar-Jara, R., Rendas, L.M.P.
core  

The simulation studies: a generalized class of Hartley-Ross type under non-response conditions

Mathematical and Computer Modelling of Dynamical Systems
In the context of sample surveys, it is only sometimes feasible to obtain complete and accurate information. Non-response represents a significant challenge in this context.
Badr Aloraini, Hatice Oncel Cekim, Ceren Unal   +2 more
doaj   +1 more source

Efficient parameter estimation for the Poisson–Ailamujia distribution under ranked set and simple random sampling

Applied Mathematics in Science and Engineering
This study presents a comparative analysis of parameter estimation methods for the discrete Poisson–Ailamujia distribution, a model suitable for rare-event data that has received limited attention in the statistical literature, under both simple random ...
Tenzile Erbayram, Ibrahim Elbatal, Yunus Akdoğan, Ahmed Z. Afify   +3 more
doaj   +1 more source

Estimación bajo no-respuestas aleatorias al usar diseños de probabilidades desiguales [PDF]

, 1988
Sin ...
Bouza, C.N.
core   +2 more sources

El sesgo condicionado en el análisis de influencia: una revisión [PDF]

, 2001
El sesgo condicionado se ha propuesto como diagnóstico de influencia en distintos modelos y técnicas estadísticas. Tratando de recoger una visión global de la utilidad del concepto, en este trabajo se hace una revisión general del mismo relacionándolo ...
Enguix González, Alicia, Gómez Gómez, M. Teresa, Moreno Rebollo, Juan Luis, Muñoz-Pichardo, J. M.   +3 more
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MEAN SQUARED ERRORS OF SMALL AREA ESTIMATORS UNDER A UNIT-LEVEL MULTIVARIATE MODEL [PDF]

, 2005
This work deals with estimating the vector of means of characteristics of small areas. In this context, a unit level multivariate model with correlated sampling errors is considered.
Amparo Baillo, Isabel Molina
core   +4 more sources

Adaptive strategies in unrelated question randomized response techniques for sensitive data collection

Research in Statistics
When surveys involve sensitive issues-such as gambling habits, drug addiction, alcoholism, tax evasion, induced abortions, drunk driving, criminal history, or homosexuality non-response and response biases frequently occur, as respondents may be ...
Khalid Ul Islam Rather, Osama Abdulaziz Alamri, Tanveer Ahmad Tarry   +2 more
doaj   +1 more source

e-Encuestas Probabilísticas II. Los Métodos de Muestreo Probabilístico [PDF]

, 2002
En este trabajo se aborda fundamentalmente el estudio de las encuestas que utilizan la herramienta de Internet para su realización. En concreto su objetivo se centra en el planteamiento y desarrollo de diseños muestrales probabilísticos que permitan ...
Jiménez Gamero, María Dolores, Muñoz García, Joaquín, Muñoz Reyes, Ana María, Pino Mejías, Rafael   +3 more
core  

Endogenous post-stratification in surveys: classifying with a sample-fitted model

, 2008
Post-stratification is frequently used to improve the precision of survey estimators when categorical auxiliary information is available from sources outside the survey.
Breidt, F. Jay, Opsomer, Jean D.
core   +2 more sources

Analytic and bootstrap approximations of prediction errors under a multivariate fay-herriot model [PDF]

, 2005
A Multivariate Fay-Herriot model is used to aid the prediction of small area parameters of dependent variables with sample data aggregated to area level.
González Manteiga, Wenceslao, Lombardía, Maria J., Molina, Isabel, Morales, Domingo, Santamaría, Laureano   +4 more
core   +1 more source