On improved class of difference type estimators for population median in survey sampling
Javid Shabbir, Sat Gupta, Ghulam Narjis
Abstract
We propose two new improved class of difference type estimators for population median under simple random sampling (SRS) and two-phase sampling (TPS). Expressions for bias and MSE are derived up to first order of approximation. We make a comparison of proposed estimators with all other commonly known estimators in literature. Numerical findings show that the proposed class of estimators perform better as compared to all other estimators considered here.
Topics & Concepts
EstimatorSimple random sampleMathematicsPopulation meanExtremum estimatorClass (philosophy)Sampling (signal processing)StatisticsPopulationBootstrapping (finance)Simple (philosophy)Type (biology)Survey samplingM-estimatorApplied mathematicsComputer scienceEconometricsArtificial intelligenceDemographyPhilosophyEcologyComputer visionBiologySociologyEpistemologyFilter (signal processing)Survey Sampling and Estimation Techniques