A Ratio Estimator Under General Sampling Design
Recently, many authors introduced ratio-type estimators for estimating the mean, or the ratio, for a finite populations. Most of the articles are discussing this problem under simple random sampling design, with more assumptions on the auxiliary variable
Jehad Al-Jararha +1 more
doaj +1 more source
Study of Dual to Ratio-Cum-Product Estimator of Finite Population Mean under Double Sampling in Sample Surveys [PDF]
A class of estimator based on dual to ratio and dual to product-type estimator in double sampling for estimating finite population mean is proposed. The bias and mean square error of the proposed estimator are obtained in two different cases.
Sanjib Choudhury, Bhupendra Kumar Singh
doaj +1 more source
Optimal Power Allocation for Channel Estimation in MIMO-OFDM System with Per-Subcarrier Transmit Antenna Selection [PDF]
A novel hybrid channel estimator is proposed for multiple-input multiple-output orthogonal frequency- division multiplexing (MIMO-OFDM) system with per-subcarrier transmit antenna selection having optimal power allocation among subcarriers.
Rajeswari, K., Thiruvengadam, S. J.
core +2 more sources
Estimation of Variance Using Known Coefficient of Variation and Median of an Auxiliary Variable [PDF]
A modified ratio type variance estimator for estimating population variance of a study variable when the population median and coefficient of variation of an auxiliary variable are known is proposed.
Kumarapandiyan, G., Subramani, J.
core +2 more sources
Log-Ratio Lasso: Scalable, Sparse Estimation for Log-Ratio Models [PDF]
AbstractPositive-valued signal data is common in the biological and medical sciences, due to the prevalence of mass spectrometry other imaging techniques. With such data, only the relative intensities of the raw measurements are meaningful. It is desirable to consider models consisting of the log-ratios of all pairs of the raw features, since log ...
Stephen Bates, Robert Tibshirani
openaire +4 more sources
Methods of sample adjustment. Improving the quality of survey results [PDF]
Statistical surveys, however well designed, often find that the resulting sample structure does not always reproduce the population structure accurately.In order to get more accurate estimators for the variables of interest, several methods of sample ...
Alina BARBU
doaj
Optimized inferences of finite population mean using robust parameters in systematic sampling.
In this article, we have proposed a generalized estimator for mean estimation by combining the ratio and regression methods of estimation in the presence of auxiliary information using systematic sampling.
Nazia Shaheen +3 more
doaj +1 more source
Estimation of the current population total for a four-phase sampling design
The combined ratio-type estimators of the finite population total and their variances in the case of sample rotation for two-phase and four-phase sampling schemes are constructed in the paper.
Viktoras Chadyšas +1 more
doaj +1 more source
This paper proposes a ratio-cum-product estimator of finite population mean in stratified random sampling using information on population means of two auxiliary variables.
Rajesh Tailor +3 more
doaj +1 more source
A new exponential ratio-type estimator with linear combination of two auxiliary variables. [PDF]
In sample surveys, it is usual to make use of auxiliary information to increase the precision of estimators. We propose a new exponential ratio-type estimator of a finite population mean using linear combination of two auxiliary variables and obtain mean
Jingli Lu, Zaizai Yan, Xiuyun Peng
doaj +1 more source

