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Reza Pakyari

Reza Pakyari

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Science
Address: Arak University
Phone:

Research

Title
Non-Bayesian Estimation and Prediction under Weibull Interval Censored Data
Type
JournalPaper
Keywords
Approximate maximum likelihood estimator, Bootstrap samples, interval censoring, mean squared prediction error, mid-point approximation, monte Carlo simulation, one-sample prediction.
Year
2023
Journal Journal of statistical of Iran (JSRI)
DOI
Researchers Somayeh Ghafouri ، Arezou Habibirad ، Fatemeh Yousefzadeh ، Reza Pakyari

Abstract

In this paper, a one-sample point predictor of the random variable X is studied. X is the occurrence of an event in any successive visits Li and Ri :i = 1; 2; ... ; n (interval censoring). Our proposed method is based on finding the expected value of the conditional distribution of X given Li and Ri (i = 1; 2; ... ; n). To make the desired prediction, our approach is on the basis of approximating the unknown Weibull parameters using the mid-point approximation and approximate maximum likelihood (AML). After obtaining the parameter estimation, the prediction of X can be made. Moreover, the 95% bootstrap confidence intervals of unknown parameters and the 95% bootstrap prediction bounds of X are presented. The performance of the proposed procedure based on the mean squared error (MSE) and the average width (AW ) of the confidence interval is investigated by employing Monte Carlo simulation. A Real data set is also studied to illustrate the proposed procedure.