A survey of 1000 students concluded that 274 students chose a professional baseball team. .4. as his
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A survey of 1000 students concluded that 274 students chose a professional baseball team. .4. as his or her favorite team. In 1991, the same survey was conducted involving 760 students. It concluded that 240 of them also chose team A as their favorite. Compute a 95% confidence interval for the difference between the proportions of students favoring team .4 between the two surveys. Is there a significant difference?
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