Construct a confidence interval for
p1−p2
at the given level of confidence.
x 1 =399,
n 1 =533,
x 2 =433,
n 2=569,
90% confidence
The researchers are
---------%
confident the difference between the two population proportions,
p1−p2,
is between
------------
and
------------
(Use ascending order. Type an integer or decimal rounded to three decimal places as needed.)
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