Political polls typically sample randomly from the U.S population to investigate the percentage of voters who favor some candidate or issue. The number of people polled is usually on the order of 1000. Suppose that one such poll asks voters how they feel about the Presidents handling of the crisis in the financial markets. The results show that 432out of the 1001 people polled say they either approve or strongly approve of the Presidents handling of this matter. Based on the sample referenced above, find a 95% confidence interval estimate for the proportion of the entire voter population who approve or strongly approve of the Presidents handling of the crisis in the financial markets.

Now, heres an interesting twist. If the same sample proportion was found in a sample twice as largethat is, 864out of 2002how would this affect the confidence interval?

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This is for a discussion so the more detail the better, please!!