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Re: st: Sample size for equivalence trials in Stata


From   "Paul O'Brien" <[email protected]>
To   <[email protected]>
Subject   Re: st: Sample size for equivalence trials in Stata
Date   Sat, 08 Feb 2003 20:24:59 +0000

On 8-2-03 2:08 pm, "Philip Ryan" <[email protected]> wrote:

> Remember this simple program uses normal approximations, so when dealing
> with proportions less than about 0.2 you are on shaky ground.
> 

Thanks Philip,

Unfortunately I am dealing with proportions of the order of 0.01.

Any suggestions.

Paul

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