Solution-Calculate the exact value to answer question

Calculate the exact value to answer question

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We have conducted an election poll of 600 likely voters, collected as randomly as possible. The 95% confidence interval (CI) for those planning to vote for Senator Smith is about 55% +/- 4%. How many additional likely voters would we need to poll to reduce the CI width to +/- 2%? Hint - you do not need to calculate the exact value to answer this question.

600
1,200
1,800
2,400
None of the above

Reference no: EM131332654

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Calculate the exact value to answer question

Reference no: EM131332654

Reference no: EM131332654

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