...Michael Perakis Purpose The purpose of the paper is the construction of confidence intervals for the ratio of the values of process capability index C_pm for two processes. These confidence intervals can be used for comparing the capability of any pair of competitive...

...Tadashi Dohi; Hiroyuki Okamura; Cun Hua Qian Purpose In this paper, the authors propose two construction methods to estimate confidence intervals of the time-based optimal software rejuvenation policy and its associated maximum system availability via a parametric bootstrap method. Through...

... distribution. To estimate reliability, the parameters are estimated by using ML method. Findings The simulation results indicate that the average bias and average mean square error decreases as sample size increases for both methods of estimation in reliability. The length of the confidence interval also...