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An Improved Class of Chain Ratio-Product Type Estimators in Two-Phase Sampling Using Two Auxiliary Variables

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  • Gajendra K. Vishwakarma
  • Manish Kumar

Abstract

This paper presents a technique for estimating finite population mean of the study variable in the presence of two auxiliary variables using two-phase sampling scheme when the regression line does not pass through the neighborhood of the origin. The properties of the proposed class of estimators are studied under large sample approximation. In addition, bias and efficiency comparisons are carried out to study the performances of the proposed class of estimators over the existing estimators. It has also been shown that the proposed technique has greater applicability in survey research. An empirical study is carried out to demonstrate the performance of the proposed estimators.

Suggested Citation

  • Gajendra K. Vishwakarma & Manish Kumar, 2014. "An Improved Class of Chain Ratio-Product Type Estimators in Two-Phase Sampling Using Two Auxiliary Variables," Journal of Probability and Statistics, Hindawi, vol. 2014, pages 1-6, March.
    • Handle: RePEc:hin:jnljps:939701
    DOI: 10.1155/2014/939701
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