The city of Raleigh has 9500 registered voters. There are two candidates for 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. What is the population of this survey? 350
b. What is the size of the population? 9500
c. What is the size of the sample? 350
d. Give the sample statistic for the proportion of voters surveyed who said they'd vote for Brown. 112/350= 0.32 X100 32 %
e. Based on this sample, we might expect how many of the 9500 voters to vote for Brown? 9500 x 0.32= 3040 voters