The New Weibull-Pareto Distribution Stress-Strength Reliability for P(T

In this paper, the reliability formula of stress-strength model is derived for probability a component having strength X falling between two stresses T and Z, based on The New Weibull-Pareto Distribution with unknown parameter known common parameters . Four methods estimating are discussed which Maximum Likelihood, Method Moment, Least Square Weighted Method, comparison these estimations simulation study by mean square error criteria each small, medium large samples. most important conclusion that confirms performance maximum likelihood estimator works better all experiments studied.