This is statistics course and I need help with answering those questions. This is Confidence Intervals and Experimental Design unit.

Question 3 10 pts 3. An online data center wishes to report on a nationwide political race to predict the proportion of voters who will vote for each candidate in the upcoming election. Which of these would be best to use for computing the condence interval? Question 5 10 pts 5. Five hundred registered voters in El Paso are surveyed the day before a mayoral election. Of those surveyed, 125 supported re-electing the mayor. Use this information to form a 95% condence interval and choose the best prediction. 0 We are 95% condent that the mayor will receive between 19.1% and 31.2% of the vote in the election. 0 We are 95% condent that the mayor will receive between 18.5% and 31.5% of the vote in the election. 0 We are 95% condent that the mayor will receive between 16% and 34% of the vote in the election. 0 We are 95% condent that the mayor will receive between 21.2% and 28.8% of the vote in the election. 0 The conditions for normality are not met, so we cannot make a prediction. D Question 4 10 pts 4.Match each confidence level with the associated critical z-test value, or z . You may wish to use Table A to answer this question. 90% [ Choose ] V 95% [ Choose ] 97% [ Choose ] V 99% [ Choose ] AV [ Choose] 1.645 2.17 1 282 1.960 2.576