RecordNumber
3945
Author
Cramer, Erhard
Crop_Body
Erhard Cramer, and Benjamin Laumen
Title of Article
Stage Life Testing with Missing Stage Information - an EMAlgorithm Approach
Title Of Journal
خبرنامه انجمن آمار ايران (JIRSS)
PublishInfo
تهران :انجمن آمار ايران
Publication Year
2021
Volum
20
Issue Number
1
Keywords
EM-Algorithm , Exponential Distribution , Missing Information , Progressive Censoring , Stage Life Testing , Weibull Distribution
Abstract
We consider a stage life testing model and assume that the information
at which levels the failures occurred is not available. In order to find estimates for
the lifetime distribution parameters, we propose an EM-algorithm approach which
interprets the lack of knowledge about the stages as missing information. Furthermore,
we illustrate the implementation diculties caused by an increasing number of stages.
The study is supplemented by a data example as well as simulations.