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QUESTION
If a 90% confidence interval for the difference of proportions contains some positive and some negative values, what can we conclude about the
If a 90% confidence interval for the difference of proportions contains some positive and some negative values, what can we conclude about the relationship betweenp1 and p2 at the 90% confidence level?
a.) We can conclude that p1 > p2.
b.) We can not make any conclusions.
c.) We can conclude that p1 < p2.
