Temat: optimum - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Best Linear Unbiased Estimators of Population Mean on Current Occasion in Two-Occasion Rotation Patterns
Autorzy:: Singh, G. N.
Prasad, S.
Powiązania:: https://bibliotekanauki.pl/articles/465782.pdf
Data publikacji:: 2013
Wydawca:: Główny Urząd Statystyczny
Tematy:: successive sampling
auxiliary information
unbiased
variance
optimum replacement policy
Opis:: Best linear unbiased estimators have been proposed to estimate the population mean on current occasion in two-occasion successive (rotation) sampling. Behavior of the proposed estimators have been studied and their respective optimum replacement policies are discussed. Empirical studies are carried out to examine the performance of the proposed estimators and consequently the suitable recommendations are made.
Źródło:: Statistics in Transition new series; 2013, 14, 1; 57-74
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Synthetic Estimators Using Auxiliary Information in Small Domains
Autorzy:: Rai, P. K.
Pandey, K. K.
Powiązania:: https://bibliotekanauki.pl/articles/465709.pdf
Data publikacji:: 2013
Wydawca:: Główny Urząd Statystyczny
Tematy:: auxiliary information
small area (domain) estimation synthetic estimation
optimum weights
Opis:: In the present article we discuss the generalized class of synthetic estimators for estimating the population mean of small domains under the information of two auxiliary variables, and describe the special cases under the different values of the constant beta involved in the proposed generalized class of synthetic estimator. In addition we have taken a numerical illustration for the two auxiliary variables and compared the result for the synthetic ratio estimator under single and two auxiliary variables.
Źródło:: Statistics in Transition new series; 2013, 14, 1; 31-44
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: New linear model for optimal cluster size in cluster sampling
Autorzy:: Shukla, Alok Kumar
Yadav, Subhash Kumar
Powiązania:: https://bibliotekanauki.pl/articles/1363544.pdf
Data publikacji:: 2020-06-05
Wydawca:: Główny Urząd Statystyczny
Tematy:: Non-linear models
optimum cluster size
four-parameter model
variance function
Opis:: In this paper, a nonlinear model is proposed for improving the relationship between the size of a cluster and the variance within the cluster. This model describes the most appropriate functional relation between the within-cluster variance and the cluster size. Through this model, we can obtain the optimum size of a cluster and an estimate of the variance between clusters. The proposed model leads to further improvement in the estimation of the optimum size of a cluster, and the formula for the determination of optimum cluster size leads to explicit solution of models.
Źródło:: Statistics in Transition new series; 2020, 21, 2; 189-200
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Advances in estimation by the item sum technique in two move successive sampling
Autorzy:: Priyanka, Kumari
Trisandhya, Pidugu
Powiązania:: https://bibliotekanauki.pl/articles/19900669.pdf
Data publikacji:: 2023-09-08
Wydawca:: Główny Urząd Statystyczny
Tematy:: Sensitive variable
Successive moves
Population mean
Variance
Mean squared error
Optimum matching fraction
Opis:: The present article proposes an estimator using the Item Sum Technique (IST) for the estimation of dynamic sensitive population mean using non-sensitive auxiliary information in the two-move successive sampling. Properties of the proposed IST estimator have been analysed. Possible allocation designs for allocating long-list and short-list samples pertaining to the IST have been elaborated. The comparison between various allocation designs has been carried out. Theoretical considerations have been integrated with numerical as well as simulation studies to show the working version of the proposed IST estimators in the two-move successive sampling.
Źródło:: Statistics in Transition new series; 2023, 24, 4; 123-138
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Some Effective Estimation Procedures Under Non- Esponse in Two-Phase Successive Sampling
Autorzy:: Singh, G. N.
Khetan, M.
Maurya, S.
Powiązania:: https://bibliotekanauki.pl/articles/465962.pdf
Data publikacji:: 2016
Wydawca:: Główny Urząd Statystyczny
Tematy:: non-response, successive sampling two-phase sampling
mean square error
optimum replacement strategy
Opis:: This work is designed to assess the effect of non-response in estimation of the current population mean in two-phase successive sampling on two occasions. Sub-sampling technique of non-respondents has been used and exponential methods of estimation under two-phase successive sampling arrangement have been proposed. Properties of the proposed estimation procedures have been examined. Empirical studies are carried out to justify the suggested estimation procedures and suitable recommendations have been made to the survey practitioners.
Źródło:: Statistics in Transition new series; 2016, 17, 2; 163-182
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Some Rotation Patterns in Two-Phase Sampling
Autorzy:: Singh, G. N.
Prasad, Shakti
Powiązania:: https://bibliotekanauki.pl/articles/465915.pdf
Data publikacji:: 2011
Wydawca:: Główny Urząd Statystyczny
Tematy:: Two-phase, successive sampling
auxiliary information
chain-type
bias
mean square error
optimum replacement policy
Opis:: A problem related to the estimation of population mean on the current occasion using two-phase successive (rotation) sampling on two occasions has been considered. Two-phase ratio, regression and chain-type estimators for estimating the population mean on current (second) occasion have been proposed. Properties of the proposed estimators have been studied and their respective optimum replacement policies are discussed. Estimators are compared with the sample mean estimator, when there is no matching and the natural optimum estimator, which is a linear combination of the means of the matched and unmatched portions of the sample on the current occasion. Results are demonstrated through empirical means of comparison and suitable recommendations are made.
Źródło:: Statistics in Transition new series; 2011, 12, 1; 25-44
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Ratio-To-Regression Estimator In Successive Sampling Using One Auxiliary Variable
Autorzy:: Ralte, Zoramthanga
Das, Gitasree
Powiązania:: https://bibliotekanauki.pl/articles/973550.pdf
Data publikacji:: 2015
Wydawca:: Główny Urząd Statystyczny
Tematy:: ratio-to-regression estimator
auxiliary variable
successive sampling
bias
mean square error
optimum replacement policy
Opis:: The problem of estimation of finite population mean on the current occasion based on the samples selected over two occasions has been considered. In this paper, first a chain ratio-to-regression estimator was proposed to estimate the population mean on the current occasion in two-occasion successive (rotation) sampling using only the matched part and one auxiliary variable, which is available in both the occasions. The bias and mean square error of the proposed estimator is obtained. We proposed another estimator, which is a linear combination of the means of the matched and unmatched portion of the sample on the second occasion. The bias and mean square error of this combined estimator is also obtained. The optimum mean square error of this combined estimator was compared with (i) the optimum mean square error of the estimator proposed by Singh (2005) (ii) mean per unit estimator and (iii) combined estimator suggested by Cochran (1977) when no auxiliary information is used on any occasion. Comparisons are made both analytically as well as empirically by using real life data.
Źródło:: Statistics in Transition new series; 2015, 16, 2; 183-202
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Modelling sensitive issues on successive waves
Autorzy:: Priyanka, Kumari
Trisandhya, Pidugu
Powiązania:: https://bibliotekanauki.pl/articles/1359283.pdf
Data publikacji:: 2019-04-25
Wydawca:: Główny Urząd Statystyczny
Tematy:: Sensitive variable
Successive waves
Scrambled Response model
Class of estimators
Population mean
Bias
Mean squared error
Optimum matching fraction
Opis:: This paper addresses the problem of estimation of population mean of sensitive character using non-sensitive auxiliary variable at current wave in two wave successive sampling. A general class of estimator is proposed and studied under randomized and scrambled response model. Many existing estimators have been modified to work for sensitive population mean estimation. The modified estimators became the members of proposed general class of estimators. The detail properties of all the estimators have been discussed. Their behaviour under randomized and scrambled response techniques have been elaborated. Numerical illustrations including simulation have been accompanied to judge the performance of different estimators. Finally suitable recommendations are forwarded.
Źródło:: Statistics in Transition new series; 2019, 20, 1; 41-65
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki