Testing For Model Assumptions Validity

In this thesis, we concern with the testing of violations of the classical assumptions in the estimation which we obtained from parametric regression life testing models for example, Weibull regression model, exponential regression model and extreme – valAlso in this thesis, we present four methods to estimate the unknown parameters of the distributions (graphical, maximum likelihood, ordinary least squares and weighted least squares methods). We use complete data and censoring data whether type I censori