International Research Journal of Mechanical Engineering Vol. 3 (5) pp. 317-320, May, 2015. © International Scholars Journals
Full Length Research Paper
Construction of chain sampling plan-1 indexed through producer’s nano quality level and consumer’s nano quality level
*Prakash M. Kamal, Humayun Hossain and Ahmed Ali Bogra
Department of Mechanical Engineering, Daffodil International University, Dhaka, Bangladesh.
E-mail: [email protected].
Accepted 20 April, 2014
Abstract
Motorola (1980) introduced the concept of “six sigma” as a quality philosophy and a management strategy, which when adopted in a system of organization will reduce wastages, increase the profit to the management and enhance the satisfaction of the customer. If this concept of six sigma is adopted in an organization it can results in 3.4 or less number of defects per million opportunities in the long run. In recent days in developed and developing countries more and more organization started working beyond six sigma level and thereby the performance level increases with number of defectives reduced to near zero level. In this paper a new procedure for the construction of chain sampling plan-1(ChSP-1) indexed through producer’s nano quality level (PNQL) and consumer’s nano quality level (CNQL) is introduced and suitable tables are provided for the easy selection of the plan.
Key words: Nano quality level, Poisson distribution, chain sampling plan, Operating Characteristic (OC) curve, six sigma quality level.