Temat: ratio estimator - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A Better Estimator of Population Mean with Power Transformation Based on Ranked Set Sampling
Autorzy:: Mehta (Ranka), Nitu
Mandowara, V. L.
Powiązania:: https://bibliotekanauki.pl/articles/466002.pdf
Data publikacji:: 2012
Wydawca:: Główny Urząd Statystyczny
Tematy:: ranked set sampling
ratio estimator
power transformation estimator auxiliary variable
Opis:: Ranked set sampling (RSS) was first suggested by McIntyre (1952) to increase the efficiency of estimate of the population mean. It has been shown that this method is highly beneficial to the estimation based on simple random sampling (SRS). There has been considerable development and many modifications were done on this method. This paper presents a modified ratio estimator using prior value of coefficient of kurtosis of an auxiliary variable x, with the intention to improve the efficiency of ratio estimator in ranked set sampling. The first order approximation to the bias and mean square error (MSE) of the proposed estimator are obtained. A generalized version of the suggested estimator by applying the Power transformation is also presented.
Źródło:: Statistics in Transition new series; 2012, 13, 3; 551-558
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Estimating the population mean using a continuous sampling design dependent on an auxiliary variable
Autorzy:: Wywiał, Janusz L.
Powiązania:: https://bibliotekanauki.pl/articles/1059051.pdf
Data publikacji:: 2020-12-04
Wydawca:: Główny Urząd Statystyczny
Tematy:: continuous sampling design
Horvits-Thompson estimator
inclusion density
sampling scheme
bivariate gamma distribution
ratio estimator
Opis:: Continuous distribution of variables under study and auxiliary variables are considered. The purpose of the paper is to estimate the mean of the variable under study using a sampling design which is dependent on the observation of a continuous auxiliary variable in the whole population. Auxiliary variable values observed in this population allow to estimate the inclusion density function of the sampling design. The variance of the continuous version of the Horvitz-Thompson estimator under the proposed sampling design is compared with the variance of the mean of a simple random sample. The accuracy of the estimation strategies is analysed by means of simulation experiments.
Źródło:: Statistics in Transition new series; 2020, 21, 5; 1-16
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Sampling Designs Proportionate to Sum of Two Order Statistics of Auxiliary Variable
Autorzy:: Wywiał, Janusz L.
Powiązania:: https://bibliotekanauki.pl/articles/465790.pdf
Data publikacji:: 2013
Wydawca:: Główny Urząd Statystyczny
Tematy:: sampling design
order statistic
sample quantile
auxiliary variable
Horvitz-Thompson statistic
inclusion probabilities
sampling scheme
ratio estimator
Opis:: In this paper the case of a conditional sampling design proportional to the sum of two order statistics is considered. Several strategies including the Horvitz-Thompson estimator and ratio-type estimators are discussed. The accuracy of these estimators is analyzed on the basis of computer simulation experiments.
Źródło:: Statistics in Transition new series; 2013, 14, 2; 231-248
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Estimation of Mean on The Basis of Conditional Simple Random Sample
Autorzy:: Wywiał, Janusz L.
Powiązania:: https://bibliotekanauki.pl/articles/466050.pdf
Data publikacji:: 2016
Wydawca:: Główny Urząd Statystyczny
Tematy:: conditional sampling design
order statistic
concomitant
sample quantile
auxiliary variable
Horvitz-Thompson statistic
inclusion probabilities
sampling scheme
ratio estimator
Opis:: Estimation of the population mean in a finite and fixed population on the basis of the conditional simple random sampling design dependent on order statistics (quantiles) of an auxiliary variable is considered. Properties of the well-known Horvitz-Thompson and ratio type estimators as well as the sample mean are taken into account under the conditional simple random sampling designs. The considered examples of empirical analysis lead to the conclusion that under some additional conditions the proposed estimation strategies based on the conditional simple random sample are usually more accurate than the mean from the simple random sample drawn without replacement.
Źródło:: Statistics in Transition new series; 2016, 17, 3; 411-428
1234-7655
Pojawia się w:: Statistics in Transition new series
Dostawca treści:: Biblioteka Nauki

Artykuł

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