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The well known Linear Failure Rate Distribution (LFRD) is considered. A process variate following LFRD is thought of in order to develop control charts for subgroup mean and subgroup range. In view of the limitations on LFRD the theoretical control limits are obtained through some approximations and the resulting control chart limits are worked out. Comparisons with the control limits of similar variable control charts is also presented.


Linear Failure Rate Distribution Control Charts Sub group mean and range.

Article Details

Author Biographies

Metlapalli Chaitanya Priya, Jazan University

Assistant Professor, Department of Mathematics

Rani R L Kantam, Acharya Nagrajuna University

Retired Professor of Statistics, Acharya Nagarjuna University
How to Cite
Priya, M. C., & Kantam, R. R. L. (2017). Variable Control Charts - Linear Failure Rate Distribution. Pakistan Journal of Statistics and Operation Research, 13(4), 715-726.