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A recent random sample of 200 U.S. females revealed 110 use Twitter regularly. A separate random sample of 150 males revealed that 60 use Twitter

A recent random sample of 200 U.S. females revealed 110 use Twitter regularly. A separate random

sample of 150 males revealed that 60 use Twitter regularly.

Construct and interpret a 99% confidence interval for the true difference in proportion of males

and females who use Twitter regularly (females - male).

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