Open Access Open Access  Restricted Access Subscription or Fee Access

Exponentiated Weibull Model For Analyzing Bathtub Failure – Rate Data

S. Shunmugapriya, S. Lakshmi


A simple generalization of the Weibull distribution offered here is well suited for modeling bathtub failure rate life time data and for testing goodness-of-fit of the Weibull and negative exponential models as sub hypothesis. For example the theoretical study for the effect of stress on ACTH levels with the mesocortical dopamine (DA) system including of the HPA axis regulation which were handled (H) or Non-handled (NH) postnatally. The result shows that the concentration of ACTH levels is connected with hazard failure rate.


DA-dopamine, HPA-hypothalamic pituitary axis, ACTH–adrenocortic hormone, Goodness of fit, ML- maximum likelihood, Life time data

Full Text:


Disclaimer/Regarding indexing issue:

We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information.