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Comparison Some Parametric and Non –parametric Methods To Estimate Median Effective Dose ( ED50 ) Abstract | ||
| journal of Economics And Administrative Sciences/ University of baghdad | ||
| Article 1, Volume 19, Issue 73, 2013, Pages 453-470 | ||
| Abstract | ||
| In this paper the research represents an attempt of expansion in using the parametric and non-parametric estimators to estimate the median effective dose ( ED50 ) in the quintal bioassay and comparing between these methods . We have Chosen three estimators for Comparison. The first estimator is ( Spearman-Karber ) and the second estimator is ( Moving Average ) and The Third estimator is ( Extreme Effective Dose ) . We used a minimize Chi-square as a parametric method. We made a Comparison for these estimators by calculating the mean square error of (ED50) for each one of them and comparing it with the optimal the mean square error of ( ED50 ) and conclude results and finally this paper show that a parametric method ( minimize Chi-square ) is better than a non-parametric methods . | ||
| Keywords | ||
| Asymptotic distribution; Curve estimation; Dose; response curve; Effective dose | ||
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