Statistical inference based on left truncated and interval censored data from log-location-scale family of distributions

Here, left truncated and interval censored data are analyzed by assuming that the underlying lifetime distribution belongs to log-location-scale family. In particular, lognormal and Weibull models are considered. Steps of stochastic expectation maximization (St-EM) algorithm are developed for the estimation of model parameters. MLEs are also obtained using Newton–Raphson method. Asymptotic confidence intervals for parameters are constructed …