Determining the fears of the people in district

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A congressman is interested in determining the fears of the people in his district. His team surveys 150 randomly selected eligible voters and discovers that 22% of eligible voters are afraid of George Lopez.

-How would I construct a 95% confidence interval and interpret interval.

-How do I explain what "95% confidence" means in this context.

-How do I find out how many would be needed need to sample to be 98% confident with a margin of error of only 3%?

Reference no: EM132856529

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