Confidence Intervals-Statistics and Probability

  use a StatCrunch file containing the survey results dating back to 2004 for two questions from the GPSS. The first asks, "In politics, as of today, do you consider yourself a Republican, a Democrat or an independent?" If a respondent identifies as independent, a follow-up question is asked, "As of today, do you lean more to the Democratic Party or the Republican Party?" The data in the last two columns of the file contain the combined figures of party identifiers and leaners. Each Gallup survey that is part of this series requires at least 1000 respondents. For the purpose of this assignment, we will assume that every survey had exactly 1000 respondents. To access the StatCrunch file, follow this link: Party Affiliation Data (Links to an external site.)