Page 137 - Demo

Chapter 1 %u2022 Project 97American Community SurveyEach month, the U.S. Census Bureau selects a random sample of U.S. households to participate in the American Community Survey (ACS). The chosen households are notified by mail and invited to complete the survey online. The Census Bureau follows up on any uncompleted surveys by phone or in person. Data from the ACS are used to determine how the federal government allocates more than $675 billion in funding for local communities.120The file spa5ch1project_data, which can be accessed from the book%u2019s website at bfwpub.com/SPA5e/studentsite, contains data for 3000 randomly selected households from the 2022 ACS.121 Download the file to a computer for further analysis using the application specified by your teacher.Each row in the spreadsheet describes a household. A serial number that identifies the household is in the first column. The other columns contain values of several variables. See the code sheet on the book%u2019s website for details on how each variable is recorded. Note that all the categorical variables have been coded to have numerical values in the spreadsheet.Use the files provided to answer the following questions:1. How many variables are recorded? Classify each variable as categorical or quantitative.2. Examine the distribution of household language (HHL). Make a bar chart to display the data. Then calculate numerical summaries (counts, percentages, or proportions). Describe what you%u00a0see.3. Does the distribution of household language differ among the four U.S. regions (REGION)? Make an appropriate graph to display the data.%u00a0Then calculate numerical summaries. Write a few sentences comparing the distributions.4. Analyze the distribution of household income (HINCP) using appropriate graphs and numerical summaries.5. Does the distribution of household income differ among the four U.S. regions? Make an appropriate graph to display the data. Then calculate numerical summaries. Write a few sentences comparing the distributions.Extension: Use what you have learned in this chapter to do a complete analysis of another variable in the data set that interests you.Chapter 1 ProjectWith a solid grasp of statistics, you could become ... a market research analystMarket research analysts play a central and growing role in the modern workplace. Market research analysts work in almost every area, including government, business, and scientific fields. These analysts help companies interpret data using statistical techniques and software to draw conclusions about the products and services people want and the price consumers will pay for them. They often rely on demographic data to identify and refine plans for new product development and to forecast future trends in a given market. To communicate trends and opportunities clearly, market research analysts rely on well-constructed graphs to provide compelling visual displays of the data.To learn more about this fascinating field, check out the See Yourself in Stats site by clicking the link%u00a0in your ebook or visiting the student site at bfwpub.com/SPA5e/studentsite.See Yourself in Stats %u00a9 Bedford, Freeman & Worth Publishers. For review purposes only. Do not distribute.