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A large city with chronic economic problems is considering legalizing casino gambling. The city council wants...

A large city with chronic economic problems is considering legalizing casino gambling. The city council wants to estimate the proportion of all adults in the city who favor legalize casino gambling. This city took a small sample of adults and found 58% favored gambling .What sample size is needed if the margin of error is set to be 3% for a 95% confidence interval?

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