Accession Number : AD0778641

Title :   Inference from Accelerated Life Tests Using Eyring Type Re-Parameterizations.

Descriptive Note : Scientific rept.,

Corporate Author : GEORGE WASHINGTON UNIV WASHINGTON D C PROGRAM IN LOGISTICS

Personal Author(s) : Singpurwalla,Nozer D. ; Castellino,Victor F. ; Goldschen,Donald Y.

Report Date : 16 APR 1974

Pagination or Media Count : 18

Abstract : Least squares estimators of the parameters of the generalized Eyring Model are obtained using data from censored life tests conducted at several accelerated environments. These estimators are obtained after establishing that the Gauss-Markov conditions for least squares estimation are satisfied. Confidence intervals for the hazard rate at use conditions are obtained after empirically showing that the logarithm of the estimate of the hazard rate at use conditions is approximately normally distributed. The coverage probabilities of the confidence intervals are also verified by a Monte Carlo experiment. The techniques are illustrated by an application to some real data. (Author)

Descriptors :   *Accelerated testing, *Life tests, *Statistical analysis, Thermal stresses, Failure, Least squares method, Estimates

Subject Categories : Statistics and Probability
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE