- Tytuł:
- Estimation of Population Mean Using Two Auxiliary Sources in Sample Surveys
- Autorzy:
-
Shukla, Diwakar
Pathak, Sharad
Thakur, Narendra Singh - Powiązania:
- https://bibliotekanauki.pl/articles/465744.pdf
- Data publikacji:
- 2012
- Wydawca:
- Główny Urząd Statystyczny
- Tematy:
-
Family of estimators
SRSWOR
Bias and Mean squared error - Opis:
- This paper proposes families for estimation of population mean of the main variable under study using the information on two different auxiliary variables under simple random sampling without replacement (SRSWOR) scheme. Three different classes of estimators are constructed, examined with a complete study with other existing estimators. The expression for bias and mean squared error of the proposed families are obtained up to first order of approximation. Usual ratio estimator, product estimator, dual to ratio estimator, ratio-cum-product type estimator and many more estimators are identified as particular members of the suggested family. Expressions of optimization are derived and theoretical results are supported by numerical examples.
- Źródło:
-
Statistics in Transition new series; 2012, 13, 1; 21-36
1234-7655 - Pojawia się w:
- Statistics in Transition new series
- Dostawca treści:
- Biblioteka Nauki
Artykuł