Accession Number : ADA186722

Title :   Inference for the Exponential Life Distribution,

Corporate Author : FLORIDA STATE UNIV TALLAHASSEE DEPT OF STATISTICS

Personal Author(s) : Barlow, R E ; Proschan, Frank

PDF Url : ADA186722

Report Date : Jan 1985

Pagination or Media Count : 23

Abstract : Our objective is to develop methodology for analyzing life test data. Initially, there is only data-no mathematical models. Through an exploratory data analysis or an analysis based on the physical processes generating the data, an exponential life distribution model may be judged as appropriate for the analysis of the data. Specifically: where lambda is the unknown constant failure rate. The vertical bar in F(x/lambda) indicates that we are conditioning on the parameter lambda; i.e., for specified lambda the distribution is exponential with failure rate lambda. The corresponding density is F(x/lambda) = lambda exp -LAMBDA X, x or =, lambda 0.

Descriptors :   *LIFE TESTS, *MATHEMATICAL MODELS, FAILURE, RATES, DATA PROCESSING, DISTRIBUTION FUNCTIONS, EXPONENTIAL FUNCTIONS, LIFE EXPECTANCY(SERVICE LIFE), REPRINTS, VERTICAL ORIENTATION, RELIABILITY

Subject Categories : Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE