Authors
^{1} Department of Statistics, Faculty of Mathematics and Statistics, University of Isfahan, Isfahan, Iran.
^{2} Department of Statistics, Lorestan University, Khoramabad, Iran.
^{3} Department of Mathematical Sciences, Isfahan University of Technology, Isfahan, Iran.
Abstract
In this paper, we study an (n-k+1)-out-of-n system by adopting their components to be statistically independent though nonidentically distributed. By assuming that at least m components at a fixed time have failed while the system is still working, we obtain the mixture representation of survival function for a quantity called the conditional inactivity time of failed components in the system. Moreover, this quantity for (n-k+1)-out-of-n system, in one sample with respect to k and m and in two samples, are stochastically compared.
Keywords