A comparative study for the location and scale parameters of the Weibull distribution with given shape parameter

MERT KANTAR Y., ŞENOĞLU B.

COMPUTERS & GEOSCIENCES, vol.34, no.12, pp.1900-1909, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 34 Issue: 12
  • Publication Date: 2008
  • Doi Number: 10.1016/j.cageo.2008.04.004
  • Journal Name: COMPUTERS & GEOSCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1900-1909
  • Keywords: Efficiency, Monte Carlo simulation, Maximum likelihood estimators, Moment estimators, Generalized spacing estimators, Modified maximum likelihood estimators, Tiku's modified maximum likelihood estimators, Least-squares estimators, Weighted least-squares estimators, Percentile estimators, MAXIMUM-LIKELIHOOD-ESTIMATION, ESTIMATORS, STATISTICS
  • Ankara University Affiliated: Yes

Abstract

Nine parametric estimators of the location and scale parameters of a two-parameter Weibull distribution are compared in terms of their bias and efficiency in a simulation study. The estimators considered are the maximum likelihood estimators (MLE), moment estimators (ME), generalized spacing estimators (GSE), modified maximum likelihood estimators I (MMLE-I), modified maximum likelihood estimators II (MMLE-II), Tiku's modified maximum likelihood estimators (TMMLE), least-squares estimators (LSE), weighted least-squares estimators (WLSE) and percentile estimators (PCE). The aim of the comparisons is to identify the most efficient estimators among these nine estimators for different shape parameters and sample sizes. (c) 2008 Elsevier Ltd. All rights reserved.