In a CNNMoney.com poll conducted on July 1 3 , 2010, a sample of 5,324 Americans were asked about what matters most to them in a place to live. Thirty-seven percent of the respondents felt job opportunities matter most.

a. Construct a 90% confidence interval of the proportion of Americans who feel that good job opportunities matter most in a place to live.

b. Construct a 99% confidence interval of the proportion of Americans who feel that good job opportunities matter most in a place to live.

c. Which of the above two intervals has a higher margin of error? Explain why. P-69