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The National Citizen SurveyTM <br />Figure 1: Location of Survey Recipients <br />181 start Nw------ ••- Nw <br />yde <br />r4 � • <br />t ' � <br />ti <br />\ <br />_ I O Govdih <br />d �'! fsfBrW � <br />I l �`Rk• <br />I a /tona <br />"if Club <br />• • • a <br />16 ,4 - • N <br />• . Tv <br />I s1arW V3 /an� <br />Kelse, <br />am <br />4tl hLn <br />Q <br />S <br />Survey Recipients in Ramsey, MN <br />• Survey Recipients <br />Survey Administration and Response <br />10 <br />■MIles <br />Selected households received three mailings, one week apart, beginning in August 2014. The first mailing was a <br />prenotification postcard announcing the upcoming survey. The next mailing contained a letter from the Mayor <br />inviting the household to participate, a questionnaire and a postage -paid return envelope. The final mailing <br />contained a reminder letter, another survey and a postage -paid return envelope. The second cover letter asked <br />those who had not completed the survey to do so and those who had already done so to refrain from turning in <br />another survey. Completed surveys were collected over the following six weeks. <br />About 2% of the 1,200 surveys mailed were returned because the housing unit was vacant or the postal service was <br />unable to deliver the survey as addressed. Of the remaining 1,174 households that received the survey, 430 <br />completed the survey, providing an overall response rate of 37%; average response rates for a mailed resident <br />survey range from 25% to 40%. <br />Confidence Intervals <br />It is customary to describe the precision of estimates made from surveys by a "level of confidence" and <br />accompanying "confidence interval" (or margin of error). A traditional level of confidence, and the one used here, <br />is 95 %. The 95% confidence interval can be any size and quantifies the sampling error or imprecision of the survey <br />results because some residents' opinions are relied on to estimate all residents' opinions.' <br />' A 95% confidence interval indicates that for every 100 random samples of this many residents, 95 of the confidence intervals created will <br />include the "true" population response. This theory is applied in practice to mean that the "true" perspective of the target population lies <br />