CD Skripsi
Penaksir Untuk Rasio Variansi Populasi Menggunakan Koefisien Variasi Dan Kurtosis Pada Sampling Acak Sederhana
This nal project is a review of Kadilar and Chingi [Journal of Modern Applied
Statistical Method, 35 (2006), 111{115] which discusses three estimators of
ratio population variances ^ S2
KC1, ^ S2
K C2 and ^ S2
KC3 of the population of variables
Y using known auxiliary variables X on simple random sampling. The three
estimators ^ S2
K C1, ^ S2
KC2 and ^ S2
KC3 are the modied of ratio variances estimator
using coecien of variation and kurtosis. Bias and mean square error (MSE)
of the three estimators are obtained by MacLaurin series approximation. Fur-
thermore, the MSE of each estimator is compared. This comparison show that
the estimator having the smallest MSE is the most ecient estimator.
Keywords: Simple random sampling, ratio estimator, coefficien of variation,
kurtosis
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