IMathAS-libretexts

A random sample of likely voters showed that 20% planned to vote for Candidate A, with a margin of error of 2% points and with 99% confidence.

Which of the following statements best describes the confidence interval for the percentage of voters who plan to vote for Candidate A.

I am 99% confident that the population percentage of voters supporting Candidate A is between 16% and 24%
I am 99% confident that the population percentage of voters supporting Candidate A is between 18% and 22%.
I am 99% confident that the population percentage of voters not supporting Candidate A is between 18% and 22%.
I am 99% confident that the population percentage of voters supporting Candidate A is between 18% and 24%

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