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A Lifetime Distribution With an Upside-Down Bathtub-Shaped Hazard Function

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3 Author(s)

A three-parameter lifetime distribution with increasing, decreasing, bathtub, and upside down bathtub shaped failure rates is introduced. The new model includes the Weibull distribution as a special case. A motivation is given using a competing risks interpretation when restricting its parametric space. Various statistical properties, and reliability aspects are explored; and the estimation of parameters is studied using the standard maximum likelihood procedures. Applications of the model to real data are also included

Published in:

IEEE Transactions on Reliability  (Volume:56 ,  Issue: 2 )