Datafiles

  • Polling Download .TXT file Open in Data Desk ?
  • Methods: Comparing Two Groups, Correlation, Regression
  • Source: Polling data from Gallup
  • Number of Cases: 14
  • Excerpt: How accurate are pollsters in predicting the outcomes of Congressional elections? The table shows the actual number of Democrat seats in the House of Representatives and the number predicted by the Gallup organization for nonpresidential election years in the 4 decades following World War II.


  • Prices_and_Earnings Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Re-expression, Scatterplot
  • Source: USB - Prices and Earning: A comparison of purchasing power around the globe/2012 edition www.economist.com/node/14288808?story_id=14288808
  • Number of Cases: 72
  • Excerpt: UBS (one of the largest banks in the world) prepared a report comparing prices, wages, and other economic conditions in cities around the world for it’s international clients. Some of the variables it measured in 73 cities are Cost of Living, Food Costs, Average Hourly Wage, average number of Working Hours per Year, average number […]




  • Real_Estate Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Indicator Variables, Multiple Regression, Partial Regression Plots, Re-expression, Regression
  • Source: Class project
  • Number of Cases: 894
  • Excerpt: As a class project, students in a large Statistics class collected publicly available information on recent home sales in their hometowns. There are 894 properties. These are not a random sample, but they may be representative of home sales during a short period of time, nationwide. Among the variables available is an indication of whether […]


  • Saratoga_houses Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Regression, Scatterplot
  • Source: public records Saratoga County. Also in R library mosaic
  • Number of Cases: 1728
  • Excerpt: Prices of homes in Saratoga NY along with facts about them. Good basis for multiple regressions to predict the Price of the house. But several predictors are collinear.


  • Sleep Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Hypothesis Tests, Hypothesis Tests for Means, Re-expression, Regression, Scatterplot
  • Source: personal communication
  • Number of Cases: 25
  • Excerpt: The Sleep Foundation (www.sleepfoundation.org) says that adults should get at least 7 hours of sleep each night. A survey of students at a small school in the northeast U.S. asked, among other things, “How much did you sleep last night?” The data are the responses.




  • Storks Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Re-expression, Scatterplot
  • Source: Statistics for Experimenters, by Box, Hunter and Hunter.Originally from Ornithologische Monatsberichte,44, no. 2)
  • Number of Cases: 7
  • Excerpt: The number of storks in Oldenburg, Germany, plotted against the population of the town for 7 years in the 1930s. Do storks bring babies?


  • Streams Download .TXT file Open in Data Desk ?
  • Methods: Comparing Groups, Correlation, Data Display, Multiple Regression Inference, Re-expression, Regression, Regression Inference, Scatterplot, Summaries, Test for Difference between Two Groups
  • Source: unknown
  • Number of Cases: 172
  • Excerpt: As part of the course work, a class at an upstate NY college collects data on streams each year. Students record a number of biological, chemical, and physical variables, including the stream name, the substrate of the stream (limestone (L), shale (S), or mixed (M)), the pH, the temperature (C), and the BCI, a measure […]


  • Thrills_2013 Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Re-expression, Scatterplot
  • Source: http://www.ushsho.com/bestrollercoasterpoll.htm; Wikipedia;rcdb.com
  • Number of Cases: 16
  • Excerpt: Since 1994, the Best Roller Coaster Poll (www. ushsho.com/bestrollercoasterpoll.htm) has been ranking the world’s best roller coasters. In 2013, Bizarro dropped to 4th after earning the top steel coaster rank for six straight years. Data on the top 14 steel coasters from this poll are given.


  • Tobacco_and_alcohol Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Re-expression, Regression
  • Source: unknown
  • Number of Cases: 11
  • Excerpt: Are people who use tobacco products more likely to consume alcohol? Here are data on household spending (in pounds) taken by the British government on 11 regions in Great Britain. Do tobacco and alcohol spending appear to be related? What questions do you have about these data? What conclusions can you draw?