Question

The city of Raleigh has 9,500 registered voters. There are two candidates for the city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 350 randomly selected registered voters was conducted. 112 said they'd vote for Brown, 207 said they'd vote for Feliz, and 31 were undecided.
a. Who is the population of this survey?
b. What is the size of the population?
c. What is the size of the sample?
d. Give the statistic for the percentage of voters surveyed who said they'd vote for Brown.
e. If the margin of error was 3.5%, give the confidence interval for the percentage of voters surveyed that we might we expect to vote for Brown.

Answer 1