Population Comparison
Let
and
be the number of successes in variates taken from two populations. Define
(1)
(2)
The
Estimator
of the difference is then
. Doing a
z
-Transform
,
(3)
where
(4)
The
Standard Error
is
(5)
(6)
(7)
See also
z
-Transform
© 1996-9
Eric W. Weisstein
1999-05-26