Journal of Biometrics & Biostatistics

ISSN: 2155-6180

Open Access

Comparison of Horvitz and Thompson Estimator with that of Rao, Hartley and Cochran Estimator in PPS without Replacement Scheme


Anieting AE

This paper was focused on the comparison of Horvitz and Thompson estimator of population total with that of Rao, Hartley and Cochran estimator in PPS without replacement scheme when a sample of size six is taken from the same finite population. The data used were from Nigerian Bureau of Statistics bulletin. The result showed that the variances of both estimators gave positive values but the variance of the estimator by Rao, Hartley and Cochran was smaller making it a better estimator.


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