The four-parameter exponentiated Weibull model with Copula, properties and real data modeling.

A new four-parameter lifetime model is introduced and studied. The derives its flexibility wide applicability from the well-known exponentiated Weibull model. Many bivariate multivariate type versions are derived using Morgenstern family Clayton copula. density can exhibit many important shapes with different skewness kurtosis which be unimodal bimodal. hazard rate decreasing, J-shape, U-shape, constant, increasing, upside down increasing-constant rates. Various of structural mathematical properties derived. Graphical simulations used in assessing performance estimation method. We proved empirically importance modeling various types data such as failure times, remission survival times strengths data.