INFERENTIAL PROCEDURES BASED ON THE DOUBLE BOOTSTRAP FOR LOG LOGISTIC REGRESSION MODEL WITH CENSORED DATA

Authors

  • Yue Fang Loh
  • Jayanthi Arasan
  • Habshah Midi
  • Mohd Rizam Abu Bakar

DOI:

https://doi.org/10.22452/mjs.vol34no2.8

Abstract

Traditional inferential procedures based on the asymptotic normality assumption such as the Wald
often produce misleading inferences when dealing with censored data and small samples. Alternative estimation
techniques such as the jackknife and bootstrap percentile allow us to construct the interval estimates without relying
on any classical assumptions. Recently, the double bootstrap became preferable as it is not only free from any
classical assumptions, but also has higher order of accuracy. In this paper, we compare the performances of the
interval estimates based on the double bootstrap without pivot with the Wald, jackknife and bootstrap percentile
interval estimates for the parameters of the log logistic model with right censored data and covariates via a coverage
probability study. Based on the results of the study, we concluded that the double bootstrap without pivot technique
works better than the other interval estimation techniques, even when sample size is 25. The double bootstrap
without pivot technique worked well with real data on hypernephroma patients.

Keywords: censored data, coverage probability study, double bootstrap, interval estimation, log logistic

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Published

31-12-2015

How to Cite

Loh, Y. F., Arasan, J., Midi, H., & Abu Bakar, M. R. (2015). INFERENTIAL PROCEDURES BASED ON THE DOUBLE BOOTSTRAP FOR LOG LOGISTIC REGRESSION MODEL WITH CENSORED DATA. Malaysian Journal of Science (MJS), 34(2), 199–207. https://doi.org/10.22452/mjs.vol34no2.8

Issue

Vol. 34 No. 2 (2015)

Section

Original Articles

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