نوع فایل:PDFتعداد صفحات :22سال انتشار : 1394چکیدهThe new class of weighted exponential (WE) distributions obtained by Gupta and Kundu (9002) applying Azzalini’s method to the exponential distribution. .Kharazmi, at, al (9012) extended weighted exponential distribution to the generalized weighted exponential(GWE) distribution and studied its different properties. In this study we generalize the weibull distribution to a new class of generalized weighted weibull (GWW) distribution. Several statistical and reliability properties of this new class of distribution are obtained. Estimation and inference procedure for distribution parameters are investigated. Finally, we show that the proposed model can provide better fit than recent class of weighted exponential by using two real data examplesواژگان کلیدیWeighted exponential distribution, Hazard function, Mean residual life time, Stochastic orders, Maximum likelihood estimates