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st: Re: Derivation of p


From   "victor michael zammit" <vmz@vol.net.mt>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Re: Derivation of p
Date   Wed, 23 Apr 2003 21:38:13 +0200

Dear all,
I am trying to figure out the derivation of  p .The following program :

capture program drop kusi
program define kusi
quietly   {
postfile kusi1 mean se p_l p_u p t using kusi2,replace
local i = 1
while `i' <= 200   {
drop _all
set obs 25
gen x = invnorm(uniform())*15+115
ttest x = 115
post kusi1 (r(mu_1)) (r(se)) (r(p_l)) (r(p_u)) (r(p)) (r(t))
local i = `i' + 1
}
}
postclose kusi1
end
kusi
use kusi2,clear
graph p_l   p  p_u   t , xlabel (-3.5 , -3  to 3.5) ylabel  (0,.25 to 1)



produces an interesting diagram .Can anyone give me a hint as to how  p
 the red curve), is derived ?
Victor

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