Statistical Processes
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6. The October 24, 1996 issue of The Wall Street Journal gave the following results for a poll:
Clinton Dole
Perot Undecided
52% 35% 6%
7%
According to the article the above results were based on a nationwide survey of 1008 households. Determine a 95% confidence interval for each of the above results.
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The 95% confidence interval is p+/-1.96*standard error
Standard error = (p*q/n)^0.5
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