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Article

Keywords:
bivariate gamma distribution; life test model; series system; dependent components; reliability; estimates; Bayesian approach; table; mean; variance
Summary:
The bivariate gamma distribution is taken as a life test model to analyse a series system with two dependent components $x$ and $y$. First, the distribution of a function of $x$ and $y$, that is, minimum $(x,y)$, is obtained. Next, the reliability of the component system is evaluated and tabulated for various values of the parameters. Estimates of the parameters are also obtained by using Bayesian approach. Finally, a table of the mean and variance of minimum $(x,y)$ for various values of the parameters involved is presented.
References:
[1] S. D. Al-Saadi D. F. Serimshaw D. H. Young: Tests for independence of exponential variables. Journal of Statistical Computation and Simulation, Vol. 9 (1979), 217-233. DOI 10.1080/00949657908810318 | MR 0539879
[2] S. D. Al-Saadi D. H. Young: Estimators for the correlation coefficient in a bivariate exponential distribution. Journal of Statistical Computation and Simulation, Vol. 11 (1980), 13-20. DOI 10.1080/00949658008810386
[3] F. Downton: Bivariate exponential distribution in reliability theory. Journal of Royal Statistical Society-B, Vol. 32 (1970), 408-417. MR 0287652
[4] E. J. Gumbel: Bivariate exponential distributions. Journal of American Statistical Association, Vol. 55 (1960), 698-707. DOI 10.1080/01621459.1960.10483368 | MR 0116403 | Zbl 0099.14501
[5] J. F. Lawless: A prediction problem concerning samples from the exponential disribution with application to life testing. Technometrics, Vol. 13 (1971), 725-730. DOI 10.1080/00401706.1971.10488844
[7] G. S. Lingappaiah: Prediction in exponential life testing. Canadian Journal of Statistics, Vol. 1 (1973), 113-117. DOI 10.2307/3314650.o | MR 0400599 | Zbl 0334.62042
[7b] G. S. Lingappaiah: Prediction in samples from the gamma distribution as applied to life testing. The Australian Journal of Statistics, Vol. 16 (1974), 30-32. DOI 10.1111/j.1467-842X.1974.tb00910.x | MR 0365975 | Zbl 0318.62080
[8] G. S. Lingappaiah: Bayesian approach to the prediction problem in complete and censored samples from the gamma and exponential populations. Communications in Statistics, Vol. A8 (1979), 1403-1424. DOI 10.1080/03610927908827839 | MR 0547405 | Zbl 0416.62073
[9] G. S. Lingappaiah: Intermittent life testing and Bayesian approach to prediction with spacings in the exponential model. STATISTICA, Vol. 40 (1980), 477-490. MR 0612467 | Zbl 0472.62101
[10] S. P. Mukherjee B. C. Samsal: Life distributions of coherent dependent systems. Journal of Indian Statistical Association, Vol. 26 (1977), 39-52.
[11] P. A. P. Moran: Statistical inference in bivariate gamma distributions. Biometrika, Vol. 56 (1969), 627-634. DOI 10.1093/biomet/56.3.627 | MR 0254948
[12] D. Vere-Jones: The infinite divisibility of a bivariate gamma distribution. Sankhya-A, Vol. 29 (1967), 421-422. MR 0226704
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