Posted by brian on Saturday, January 31, 2009 at 11:16pm.
A college professor decides to run for Congress in a district with 450,000 registered voters. In a survey she commissioned, 58% of the 4000 registered voters interviewed indicated that they plan to vote for her. The population of interest is the:
A. 450,000 registered voters in the district
B. 42% or 1,680 voters interviewed who plan not to vote for her
C. 58% or 2,320 voters interviewed who plan to vote for her
D. 4,000 registered voters interviewed

stats...please help, I don't really understand  Penny, Saturday, January 31, 2009 at 11:49pm
Not exactly sure, but I think the answer would be D as the population of interest is the one being polled, which is 58% of the registered voters.

stats...please help, I don't really understand  leelia, Sunday, February 1, 2009 at 12:03am
I think the answer is D because its the number of how many people were intrested or how many voters interviewed.

stats...please help, I don't really understand  bobpursley, Sunday, February 1, 2009 at 8:44am
The professor is nterested in the registered voters in the district, and it trying to make some inferences on that group, answer A.

stats...please help, I don't really understand  drwls, Sunday, February 1, 2009 at 9:34am
What really should be the population of interest is those of the 450,000 registered voters who will actually vote. Polls are not very good at sampling or predicting the people who people who actually vote, although some try.
I agree with Bob that A is the best answer among those options.
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