Bias Reduction Technique for Estimating Finite Population Distribution Function under Simple Random Sampling without Replacement.
Date
2018Author
Onsongo, Winnie Mokeira
Otieno, Romanus Odhiambo
Orwa, George Otieno
Metadata
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The problem of nonparametric estimation of finite population distribution function using multiplicative bias correction technique is considered in this paper. A robust estimator of the finite population distribution function based on
multiplicative bias correction is derived with the aid of a super population model. The properties of the estimator are
developed and comparative study with the existing model based and design based estimators is carried to assess the
performance of the estimator developed using the simulated sets of data. It is observed that the estimator is asymptotically
unbiased and statistically consistent when certain conditions are satisfied. It has been shown that when the model-based
estimators are used in estimating the finite population total, there exists bias-variance trade-off along the boundary. The
multiplicative bias corrected estimator has recorded better results in estimating the finite population distribution function by
correcting the boundary problems associated with existing model based estimators. The simulation results led to the
suggestion that the multiplicative bias corrected estimator can be highly recommended in survey sampling estimation of the
finite population distribution function.