A note on variance estimation of ratio estimator in two phase sampling

Article type: Research Article

Authors: Arnab, R.^a | Sud, U.C.^b

Affiliations: [a] University of Botswana, Botswana. E-mail: arnabr@mopipi.ub.bw | [b] Indian Agricultural Statistics Research Institute, India. E-mail: dr.ucsud@gmail.com

Abstract: An alternative estimator of the variance of the ratio estimator under the two phase sampling scheme has been proposed. The proposed variance estimator is approximately unbiased and more efficient than the existing classical estimator due to Cochran [2] and Rao-Sitter [6] under a linear superpoulation model with intercept.

Keywords: Jackknife estimator, superpopulation model, two-phase sampling, variance estimation

DOI: 10.3233/MAS-2010-0129

Journal: Model Assisted Statistics and Applications, vol. 5, no. 1, pp. 51-60, 2010