Abstract
We propose a procedure to construct the empirical likelihood ratio confidence interval for the mean using a resampling method. This approach leads to the definition of a likelihood function for censored data, called weighted empirical likelihood function. With the second order expansion of the log likelihood ratio, a weighted empirical likelihood ratio confidence interval for the mean is proposed and shown by simulation studies to have comparable coverage accuracy to alternative methods, including the nonparametric bootstrap-t. The procedures proposed here apply in a unified way to different types of censored data, such as right censored data, doubly censored data and interval censored data, and computationally more efficient than the bootstrap-t method. An example of a set of doubly censored breast cancer data is presented with the application of our methods.
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Ren, JJ. Weighted Empirical Likelihood Ratio Confidence Intervals for the Mean with Censored Data. Annals of the Institute of Statistical Mathematics 53, 498–516 (2001). https://doi.org/10.1023/A:1014612911961
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DOI: https://doi.org/10.1023/A:1014612911961