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
[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
[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.
[12] D. Vere-Jones:
The infinite divisibility of a bivariate gamma distribution. Sankhya-A, Vol. 29 (1967), 421-422.
MR 0226704