Question: please help please type it do not handwrite and scan INTRODUCTION Gallup, a world-renowned research and polling organization, has been tracking party affiliation for many

please help please type it do not handwrite and scan

INTRODUCTION

Gallup, a world-renowned research and polling organization, has been tracking party affiliation for many years. Each month they conduct a survey as part of their Gallup Poll Social Series (GPSS), a set of public opinion surveys designed to monitor U.S. adults' views on numerous social, economic, and political topics. The core questions of the surveys differ each month, but they also include consistent and extensive demographic questions, allowing for in-depth analysis of trends. These demographic questions include information on party affiliation.

DATA

For this assignment, you will 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.)

INSTRUCTIONS

STEP 1: Ask a question involving the change in party affiliation for one party between two dates.

For example, I could ask, "Has the proportion of adults nationwide who identify as Democrat increased from June 2019 to June 2020?"

For another example, I could ask, "Has the proportion of adults nationwide who lean towards identifying as Republican decreased from December 2016 to December 2020"?

Tips: Think about dates that could have a meaningful influence on change. Examples include, before or after major elections, the beginning of the pandemic vs. the end of the pandemic. Do not choose two dates where the proportion given is exactly the same. No researcher would ever ask if there was a difference if there was no indication of a difference.

STEP 2: Look up the two proportions corresponding to your question in the StatCrunch data file and report them in your document.

For my first example, I will say, "According to the Gallup Poll given in June 2019, 29% of adults identified themselves as democrat and in June 2020, 33% of adults identified themselves as democrat."

STEP 3: Use your graphing calculator to find a 95% confidence interval for each proportion using n = 1000 and articulate the results in your document.

For my first example, I would use p^=0.29 and n = 1000 to find the first confidence interval, and p^=0.33 and n = 1000 to find the second confidence interval.

Tip: You will need to calculate x.

STEP 4: Interpret each confidence interval that you found in Step 3 and answer your question using what you know about confidence intervals.

Tips: For this step, write a thoughtful paragraph that gives clear interpretations for each of your intervals separately and a reasoned answer to your question using the language and concepts involved with confidence intervals of proportions. This step is where you show that you thoroughly understand the concepts surrounding confidence intervals and therefore carries significant weight toward your grade for this project.

STEP 5: For this step, you will use a slightly different approach to answering your initial question. Using your graphing calculator and the same proportions you identified in Step 2, find a 95% confidence interval for the difference of proportions using n = 1000 and copy the results into your document.

For my first example, I would use p^1=0.29 and n1=1000 and p^2=0.33 and n2=1000 to find the confidence interval.

Tips: Be sure to articulate which proportion you assigned as p^1 and which proportion you assigned as p^2 so your instructor can follow your work. You will also need to calculate x1 and x2.

STEP 6: Interpret the confidence interval that you found in Step 5 and again answer your question using what you know about 2-proportion confidence intervals.

Tips: For this step, write a thoughtful paragraph that gives a clear interpretation of your confidence interval and a reasoned answer to your question using the language and concepts involved with confidence intervals involving two proportions. This step is where you show that you thoroughly understand this concept and therefore it carries significant weight toward your grade for this project.

STEP 7: Explain how your conclusions given in Steps 4 and Step 6 align and give an ultimate answer to your initial question in Step 1.

Tips: For this step, write a thoughtful paragraph that gives a reasoned response to this step using the language and concepts involved with confidence intervals of proportions. If your conclusions don't align, go back and rethink those conclusions.

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