Suppose that a newspaper conducts a survey of a random sample of 120 registered voters in order to predict the winner of a local election. The Republican candidate was favored by 62 of the respondents.
a) Construct and interpret a 99% CI for the true proportion of voters who prefer the Republican candidate.
b) If a candidate needs a simple majority of the votes to win the election, can the Republican candidate be confident of victory? Justify your response with an appropriate statistical argument.

Question

Suppose that a newspaper conducts a survey of a random sample of 120 registered voters in order to predict the winner of a local election. The Republican candidate was favored by 62 of the respondents. 
a) Construct and interpret a 99% CI for the true proportion of voters who prefer the Republican candidate. 
b) If a candidate needs a simple majority of the votes to win the election, can the Republican candidate be confident of victory? Justify your response with an appropriate statistical argument.

Quizplus · Accepted Answer

The Answer of Suppose that a newspaper conducts a survey of a random sample of 120 registered voters in order to predict the winner of a local election. The Republican candidate was favored by 62 of the respondents. 
a) Construct and interpret a 99% CI for the true proportion of voters who prefer the Republican candidate. 
b) If a candidate needs a simple majority of the votes to win the election, can the Republican candidate be confident of victory? Justify your response with an appropriate statistical argument.

Suppose That a Newspaper Conducts a Survey of a Random