In the tests of metallurgical fatique and acceleration of electronic devices, in order to design and estimate the reliability, it is necessary to have a clear confidence estimation of the environment factor. But so fa...In the tests of metallurgical fatique and acceleration of electronic devices, in order to design and estimate the reliability, it is necessary to have a clear confidence estimation of the environment factor. But so far there has not been any simple and efficient method available for this purpose, Here using the data of Weibull distribution,a method is proposed for obtaining the confidence limits of the environment factor. Let X be a life variable with Weibull distribution F（x） =1-e-（x/α）β x≥O, where β and α are the shape and the characteristic life respectively. The maximum likelihood展开更多
文摘In the tests of metallurgical fatique and acceleration of electronic devices, in order to design and estimate the reliability, it is necessary to have a clear confidence estimation of the environment factor. But so far there has not been any simple and efficient method available for this purpose, Here using the data of Weibull distribution,a method is proposed for obtaining the confidence limits of the environment factor. Let X be a life variable with Weibull distribution F（x） =1-e-（x/α）β x≥O, where β and α are the shape and the characteristic life respectively. The maximum likelihood
