The Estimation reliability for parallel system of stress – Strength model of power Rayleigh distribution

In this paper, The Estimate the Reliability of two system parallel when Rp = p[x < max(y1, y2, y3, … …. yn). of two stress-strength model systems. Where x and y are independent that follows the Power Rayleigh Distribution PR(α, β) is the subject of this paper. The paper generates and examines six estimation techniques such as [ (MLE), (EMME), (LSE), and three shrinkage estimation methods (sh1) (sh2)(sh3)]. and the use of three criteria are Bais, mean squared error (MSE) and mean absolute percentage error (MAPE) are used to compare the estimators. theoretical comparison, the simulation study to find that the best six estimation method.