Surname 1Name:Institution:Tutor:Date:Confidence Interval EstimationA poll was created by Fox news to determine whether a Democrat would win against aRepublican candidate. A total of 1017 people participated in the research study. The pollrequired a participant to indicate whether they could have voted Democratic candidate in theirdistrict or Republican candidate. The Margin of error was assumed to be 3. The results werepresented in the table below.RepublicanDemocraticOther (vol.) inUnsure incandidatecandidatepercentpercentpercentage scorepercentage score6/25-27/174147484/23-25/17424728Poll question: to whom will you vote: Democratic or Republic or other?Sample size, n=1017Margin of error, MOE = 3Confidence interval (CI)CI = ( -Moe, +Moe)The sample proportion for democratic, = 0.47And the Moe = 3Surname 2Therefore, the confidence interval will beCI= (0.47-0.03, 0.47+0.03)= (0.44, 0.50)Thus the confidence interval of the mean number of people who would have voted in Democraticrepublic lies between 475 and 481.The confidence interval tells us that when several polls are taken, 95% of the samples ...

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