Statistics Solutions

[See Solution] Union, Yes! A sampling of political candidates-200 randomly chosen from the West and 200 from the East-was classified according to whether the

Question: Union, Yes! A sampling of political candidates-200 randomly chosen from the West and 200 from the East-was classified according to whether the candidate received backing by a national labor union and whether the candidate won. In the West, 120 winners had union backing, and in the East, 142 winners were backed by a national union. Find a \(95 \%\) confidence interval for the difference between the proportions of union-backed winners in the West versus the East. Interpret this interval.

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