Abstract: The interval estimation of system MTBF for time-truncation of AMSAA-BISE model is discussed. The numerical tables of the coefficients of the randomized accurate confidence interval and the Bayesian interval based on non-informative prior distribution are given. The comparison indicates that the Bayesian intervals are suitable for engineering application. And these approaches are illustrated.

Key words: AMSSA-BISE model, Bayesian interval, Randomized accurate confidence interval, System MTBF, Time-truncation