Union, Yes! A sampling of politicalcandidates200 randomly
Chapter 8, Problem 62(choose chapter or problem)
Union, Yes! A sampling of politicalcandidates200 randomly chosen from the West and200 from the Eastwas classified according towhether the candidate received backing by a nationallabor union and whether the candidate won. In theWest, 120 winners had union backing, and in the East,142 winners were backed by a national union. Find a95% confidence interval for the difference between theproportions of union-backed winners in the West versusthe East. Interpret this interval.
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