Some new results on stochastic comparisons of spacings from heterogeneous exponential distributions
Journal of Multivariate Analysis
Stochastic comparisons of parallel systems when components have proportional hazard rates
Probability in the Engineering and Informational Sciences
Stochastic order of sample range from heterogeneous exponential random variables
Probability in the Engineering and Informational Sciences
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In our article [3] we have found a gap in the middle of the proof of Theorem 3.2. Therefore, we do not know whether Theorem 3.2 is true for the reverse hazard rate order. However, we could prove the following weaker result for the stochastic order.