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To. Mr. Rod Visser - 2 - <br />County of Orange <br />Referendum Survey Proposal <br />24 January 2008 <br />In addition, the County wishes to assess: <br />(a) What effect there would be on support for either tax proposal by placing both <br />measures on the ballot at the same time; and <br />(b) Which demographic or attitudinal groups of likely Orange County voters use <br />which media outlets to obtain news and information about local affairs. <br /> <br />Assumptions <br />o The questionnaire will be between approximately 5 minutes and 8 minutes in length, with <br />no more than one open-ended verbatim question. <br />o We assume 400 completed interviews with registered Orange County voters who are at <br />least somewhat likely to vote in the primary election currently scheduled for 6 May 2008. <br />The overall margin of error is slightly below +/- 5%. Analysis within a subgroup of one- <br />third of residents (roughly 133 persons) would have a margin of error of about +/- 9%. <br />• o IMPORTANT: Owing to the limited time frame for interviewing, we will make <br />our best effort to obtain 400 interviews; but if the deadline makes this impossible, <br />we shall obtain as close to 400 interviews as is possible. The overall margin of <br />error for 350 completed interviews would be +l- 5.5%. <br />o A random sample of registered voters will be drawn from the master voter registration list <br />provided by the Orange County Board of Elections, from all voter precincts in rough <br />proportion to each precinct's share of registered voters in the county as a whole. We will <br />match these sample names against telephone listings to determine current home phone <br />numbers, to the extent current listed numbers are available. <br />o Respondents reached will be screened to confurn whether they still live in Orange County, <br />in which zip code area, and whether they are at least somewhat likely to vote in the May <br />2008 primary election. <br />o We shall monitor and make adjustments in respondent selection to assure that those <br />contacted roughly reflect the registered voters of the county with regard to gender, race, <br />age group, residence in a given zip code area, and, if the County so desires, residence <br />within a given municipality. <br /> <br />