The city of Raleigh has 9500 registered voters. There are two candidates for cit

Question

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 election. a telephone poll of 350 randomly selected registred 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?

B. What is the size of population

C. What is the size of the sample

D. Give the sample statistic for the proportion of voters surveyed who said they'd vote for Brown.

E. Based on the sample, we might expect how many of th 9500 voters to vote for Brown

Explanation / Answer

(A) Here registered voters in the city of Raleigh is the population of the survey.

(B) Size of population = 9500

(C) sample size = 350

(D) pcap = 112/350 = 0.32

0.32 is the sample statistic for the proportion of voters surveyed who said they'd vote for Brown.

(E)

Expected number of voters for Brown = 9500 * 0.32 = 3040

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