R. Jiang et Dnp. Murthy, MODELING FAILURE-DATA BY MIXTURE OF 2 WEIBULL-DISTRIBUTIONS - A GRAPHICAL APPROACH, IEEE transactions on reliability, 44(3), 1995, pp. 477-488
Conclusions - The paper presents a graphical approach to decide on the
appropriateness of a mixture of 2 Weibull distributions to model a gi
ven failure data set. It involves plotting the data on Weibull paper.
The plots are completely characterized and the parameters estimated fo
r various cases. Two examples involving real data illustrate the usefu
lness of the approach. The results are compared with those of Jiang an
d Kececioglu (1992) and the errors therein are pointed out.