Autor: Choudhury, S. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A Class of Chain Ratio-Cum-Dual to Ratio Type Estimator with Two Auxiliary Characters Under Double Sampling in Sample Surveys
Autorzy:: Choudhury, S.
Singh, B. K.
Powiązania:: https://bibliotekanauki.pl/articles/465944.pdf
Data publikacji:: 2012
Wydawca:: Główny Urząd Statystyczny
Tematy:: auxiliary variate
double sampling
chain ratio-cum-dual to ratio estimator
bias
variance
efficiency
Opis:: This paper considers a chain ratio-cum-dual to ratio type estimator for estimating population mean of the study variate using two auxiliary variates under double (two-phase) sampling procedure, when the information on another additional auxiliary variate is available along with the main auxiliary variate. The asymptotically optimum estimators (AOEs) in the class are identified in two different cases with their bias and variances. The optimum values of the first phase and second phase sample sizes have been obtained for the fixed cost of survey. Theoretical and empirical studies have also been done to demonstrate the efficiency of the proposed estimator with respect to strategies which utilized the information on two auxiliary variates.
Źródło:: Statistics in Transition new series; 2012, 13, 3; 519-536
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Estimation of P(X ≤ Y ) for discrete distributions with non-identical support
Autorzy:: Mouli Choudhury, Mriganka
Bhattacharya, Rahul
Maiti, Sudhansu S.
Powiązania:: https://bibliotekanauki.pl/articles/2107147.pdf
Data publikacji:: 2022-09-14
Wydawca:: Główny Urząd Statystyczny
Tematy:: stress-strength model
uniformly minimum variance unbiased
maximum likelihood
Opis:: The Uniformly Minimum Variance Unbiased (UMVU) and the Maximum Likelihood (ML) estimations of R = P(X ≤ Y ) and the associated variance are considered for independent discrete random variables X and Y. Assuming a discrete uniform distribution for X and the distribution of Y as a member of the discrete one parameter exponential family of distributions, theoretical expressions of such quantities are derived. Similar expressions are obtained when X and Y interchange their roles and both variables are from the discrete uniform distribution. A simulation study is carried out to compare the estimators numerically. A real application based on demand-supply system data is provided.
Źródło:: Statistics in Transition new series; 2022, 23, 3; 43-64
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

Artykuł

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