Qureishi, A.S.* (1964, ASQC and the American Statistical Association) Service Bureau Corporation, Palo Alto, CA
* - This paper is based in part, on work done under the guidance of Professor N.L. Johnson of the University of North Carolina, Chapel Hill, N.C., when he and the author were both at Case Institute of Technology, Cleveland, Ohio during 1960-61.Given two production processes, the units from which fail in accordance with the Weibull distribution, the problem of selecting the particular process with the larger mean life is considered. Three techniques are considered and three procedures are constructed to show their advantages. An alternative sequential procedure has also been proposed and shown to be valuable in some situations. This paper may be regarded as a generalization of Sobel's earlier work  on the exponential distribution.