International Journal of Information Technology and Computer Science (IJITCS)
IJITCS Vol. 6, No. 12, 8 Nov. 2014
Cover page and Table of Contents: PDF (size: 368KB)
Graphical Representation of Optimal Time for a Step-Stress Accelerated Life Test Design Using Frechet Distribution
Full Text (PDF, 368KB), PP.74-81
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Author(s)
Sana Shahab
1,*
Arif-Ul-Islam
1
Index Terms
Accelerated Life Testing, Step-Stress, Frechet (Inverse Weibull) Distribution, Maximum Likelihood, Asymptotic Variance (AV), Optimal Time, Confidence Interval
Abstract
The article provides an approach of getting optimal time through graph for Simple step stress accelerated test of inverse weibull distribution. In this we estimate parameters using log linear relationship by maximum likelihood method. Along with this, asymptotic variance and covariance matrix of the estimators are given. Comparison between expected and observed Fisher Information matrix is also shown. Furthermore, confidence interval coverage of the estimators is also presented for checking the precession of estimator. This approach is illustrated with an example using software.
Cite This Paper
Sana Shahab, Arif-Ul-Islam, "Graphical Representation of Optimal Time for a Step-Stress Accelerated Life Test Design Using Frechet Distribution", International Journal of Information Technology and Computer Science(IJITCS), vol.6, no.12, pp.74-81, 2014. DOI:10.5815/ijitcs.2014.12.10
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