7.4

A random sample of likely voters showed that 55% planned to vote for Candidate X, with a margin of error of 2 percentage points and with 95% confidence. a. Use a carefully worded sentence to report the 95% confidence interval for the percentage of voters who plan to vote for Candidate X. b. Is there evidence that Candidate X could lose? c. Suppose the survey was taken on the streets of a particular city and the candidate was running for president of the country that city is in. Explain how that would affect your conclusion. a. Which of the following statements best describes the confidence interval for the percentage of voters who plan to vote for Candidate X? O A. I am 95% confident that the population percentage of voters supporting Candidate X is between 55% and 57% O.B. I am 95% confident that the population percentage of voters supporting Candidate X is between 53% and 57% O C. I am 95% confident that the population percentage of voters not supporting Candidate X is between 53% and 57% O D. I am 95% confident that the population percentage of voters supporting Candidate X is between 53% and 55%