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A modified bootstrap estimator for the mean of an asymmetric distribution
Authors:JWH Swanepoel  CF De BEER
Abstract:A modified bootstrap estimator of the population mean is proposed which is a convex combination of the sample mean and sample median, where the weights are random quantities. The estimator is shown to be strongly consistent and asymptotically normally distributed. The small- and moderate-sample-size behavior of the estimator is investigated and compared with that of the sample mean by means of Monte Carlo studies. It is found that the newly proposed estimator has much smaller mean squared errors and also yields significantly shorter confidence intervals for the population mean.
Keywords:Modified bootstrap estimator  sample mean  sample median  mean squared error  confidence interval  nonparametric
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