You might start with J. J. Daudin's "Double Sampling Xbar Charts" in the
Journal of Quality Technology, 24, 2, April 1992 p 78-87.
Kwenda mzuri,
Frank
Frank Isackson
re:SOLUTIONS
1724 S. Encino Avenue
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I'm a student
In a project for my school, I've to write a program for calculating the
Limits of a control chart, called "Double Samping Control Chart".
It seems quite tough to me. So if anyone could give me some links
discussing/explaining about this control chart, it would be greatly
appreciated.