Dear allstat,
I have some query about calculation of Standard error (se):
assume we have estimated some parameters(a and b) and their se.
then obtained other parameters from a and b.
for example:
c=4*a
d=a- 2*b
e= a+b
and
f=a/(a+b)
I'd like to know how we can calculate se for c, d, e and f?
many thanks for your hint,
Rohullah
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