Sankhya: The Indian Journal of Statistics

1997, Volume 59, Series B, Pt. 3, 384-395

ECONOMY BASED ON-LINE QUALITY CONTROL METHOD FOR ATTRIBUTES

By

S.N. NANDI

and

M. SREEHARI, The Maharaja Sayajirao University of Baroda

SUMMARY. An economy based on-line quality control method for attributes is presented under the assumption that the production process is subject to a minor as well as a major assignable cause. An economic model under a geometric failure mechanism is developed. A direct search technique is used to find the optimal value of the design variable which minimizes the expected cost function.

 AMS (1991) subject classification. 62P30, 62C10

Key words and phrases. On-line quality control method, economic design, process failure mechanism, assignable cause, out of control ARL

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