EM-based likelihood inference for some lifetime distributions based on left truncated and right censored data and associated model discrimination

Data arising from life-testing and reliability studies are often left truncated and right censored. Some of the most commonly used distributions to model lifetime data are the lognormal, Weibull, gamma and exponential distributions. Here, the EM algorithm is used to estimate the parameters of the lognormal, Weibull and gamma models based on left truncated and right censored data. The parsimonious model that includes the lognormal, Weibull, …