SOLUTION: A simple random sample of 1600 persons is taken to estimate the percentage of Democrats among 25000 eligible voters in a certain town. It turns out that 873 people in the sample ar

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Question 1078708: A simple random sample of 1600 persons is taken to estimate the percentage of Democrats among 25000 eligible voters in a certain town. It turns out that 873 people in the sample are Democrats.
We can be 95 percent confident that between __________percent and _______percent of the voters are Democrats.

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
0.546 is point estimate
interval is +/- 1.96 * sqrt(p*(1-p))/n)=0.024
CI is (.522, .570)
or 52.2% and 57.0%