Dear S+ users,
I am looking for a sequential procedure to estimate the mean of a normal
population having unknown variance with a given relative precision. The
well-known first two-stage procedure of Stein allows to build confidence
intervals with specified confidence coefficient and absolute span. I would
like to replace this span by the product µ * c where µ is the unknown mean
and c is a given constant between 0 and 1.
Any help would be appreciated.
Regards.
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Pierre Delfosse Address: CENTEXBEL
pierre.delfosse@centexbel.be avenue du parc, 38
Telephone: 32-87-322443 B-4650 Chaineux BELGIUM
Fax: 32-87-340518
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