Temat: Bias - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: On some efficient classes of estimators using auxiliary attribute
Autorzy:: Bhushan, Shashi
Kumar, Anoop
Powiązania:: https://bibliotekanauki.pl/articles/15017632.pdf
Data publikacji:: 2023-03-15
Wydawca:: Główny Urząd Statystyczny
Tematy:: Bias
Mean square error
Efficiency
Auxiliary attribute
Opis:: This paper considers some efficient classes of estimators for the estimation of population mean using known population proportion. The usual mean estimator, classical ratio, and regression estimators suggested by Naik and Gupta (1996) and Abd-Elfattah et al. (2010) estimators are identified as the members of the suggested class of estimators. The expressions of bias and mean square errors are derived up to first-order approximation. The proposed estimators were put to test against various other competing estimators till date. It has been found both theoretically and empirically that the suggested classes of estimators dominate the existing estimators.
Źródło:: Statistics in Transition new series; 2023, 24, 2; 141-157
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Estimation of Population Mean Using Multi-Auxiliary Characters With Subsampling The Nonrespondents
Autorzy:: Khare, B. B.
Sinha, R. R.
Powiązania:: https://bibliotekanauki.pl/articles/465983.pdf
Data publikacji:: 2011
Wydawca:: Główny Urząd Statystyczny
Tematy:: Population mean
Bias
Mean square error
Multi-auxiliary characters
Opis:: The aim of this paper is to suggest a class of two phase sampling estimators for population mean using multi-auxiliary characters in presence of non-response on study character. The expressions for bias and mean square error are obtained. The condition for minimum mean square error of the proposed class of estimators has been given. The optimum values of the size of first phase sample, second phase sample and the sub sampling fraction of non-responding group have been determined for the fixed cost and for the specified precision. A comparative study of the proposed class of estimators has been carried out with an empirical study.
Źródło:: Statistics in Transition new series; 2011, 12, 1; 45-56
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Some linear regression type ratio exponential estimators for estimating the population mean based on quartile deviation and deciles
Autorzy:: Prasad, Shakti
Powiązania:: https://bibliotekanauki.pl/articles/1059039.pdf
Data publikacji:: 2020-12-04
Wydawca:: Główny Urząd Statystyczny
Tematy:: Bias
Mean square error (MSE)
Auxiliary variable
Relative Efficiency (%)
Opis:: This paper deals some linear regression type ratio exponential estimators for estimating the population mean using the known values of quartile deviation and deciles of an auxiliary variable in survey sampling. The expressions of the bias and the mean square error of the suggested estimators have been derived. It was compared with the usual mean, usual ratio (Cochran (1977)), Kadilar and Cingi (2004, 2006) and Subzar et al. (2017) estimators. After comparison, the condition which makes the suggested estimators more efficient than others is found. To verify the theoretical results, numerical results are performed on two natural population data sets.
Źródło:: Statistics in Transition new series; 2020, 21, 5; 85-98
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Modified Estimators of Population Variance in Presence of Auxiliary Information
Autorzy:: Tailor, Rajesh
Sharma, Balkishan
Powiązania:: https://bibliotekanauki.pl/articles/465891.pdf
Data publikacji:: 2012
Wydawca:: Główny Urząd Statystyczny
Tematy:: Finite population variance
Bias
Mean squared error Auxiliary information and Efficiency
Opis:: This paper proposes estimator of population variance using information on known parameters of auxiliary variable. The variances of the proposed estimators are obtained. It has been shown that using modified sampling fraction the proposed estimators are more efficient than the usual unbiased estimator of population variance and usual ratio estimator for population variance under certain given conditions. Empirical study is also carried out to demonstrate the merits of the proposed estimators of population variance over other estimators considered in this paper.
Źródło:: Statistics in Transition new series; 2012, 13, 1; 37-46
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

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