PredictionsMock2008 Presidential Dem Primary - IN ResultsPolls
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Source: Survey USA (url)

CandidatePolitical PartyPollGraphPoll Details
ClintonDemocratic52%pie
Poll Date: 2008-04-30
Number Polled: 689
Margin of Error: 4%
Voter Type: Registered
ObamaDemocratic45%
OtherDemocratic3%
-UndecidedDemocratic0%

Clinton leads Obama in IN

 By: Olawakandi (G-CA) - 2008-05-02 @ 10:21:45

Question:

Poll Demographics

About this PollThis SurveyUSA poll was conducted by telephone in the voice of a
professional announcer. Respondent households were selected at random, using a registration
based sample (RBS) provided by Aristotle, of Washington DC. All respondents heard the
questions asked identically. The calls were conducted on April 28, 29, and 30. The number of
respondents who answered each question and the margin of sampling error for each question are
provided. Where necessary, responses were weighted according to the voter registration
database. In theory, with the stated sample size, one can say with 95% certainty that the results
would not vary by more than the stated margin of sampling error, in one direction or the other,
had the entire universe of respondents been interviewed with complete accuracy. There are other
possible sources of error in all surveys that may be more serious than theoretical calculations of
sampling error. These include refusals to be interviewed, question wording and question order,
weighting by demographic control data and the manner in which respondents are filtered (such
as, determining who is a likely voter). It is difficult to quantify the errors that may result from
these factors. Fieldwork for this survey was done by SurveyUSA of Verona, NJ

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