Datafiles

  • Car_origins Download .TXT file Open in Data Desk ?
  • Methods: Chi Square Tests
  • Source: Unknown
  • Number of Cases: 359
  • Excerpt: A random survey of autos parked in the student parking lot and in the staff lot at a large university classified the brands by country of origin. Are there differences in the national origins of cars driven by students and staff?






  • Candy_bars Download .TXT file Open in Data Desk ?
  • Methods: Indicator Variables, Multiple Regression, Partial Regression Plots
  • Source: data collected by a student reading nutrition labels
  • Number of Cases: 30
  • Excerpt: The dataset holds facts about candy bars read from their nutrition labels. The data are a good example for multiple regression (e.g. what contributes to the calories of a candy bar?). For such an analysis, the indicator variable for nuts appears to work well. Note that 5 sugar-free candy bars are marked as NA in […]


  • Candy Download .TXT file Open in Data Desk ?
  • Methods: Multiple Regression Inference, Regression Inference
  • Source: FiveThirtyEight.com
  • Number of Cases: 85
  • Excerpt: The internet site Fivethirtyeight.com conducted an online survey of Halloween candies. Respondents were asked to rate which candy they prefer out of a random pairing of 2 candies selected from a full list of 85. About 269 thousand candy matchups were presented to respondents spanning 8,371 unique IP addresses. From these matchups, an ultimate preference […]




  • California_wildfires_size_2024 Download .TXT file Open in Data Desk ?
  • Methods: Boxplots, Re-expression
  • Source: https://www.fire.ca.gov/incidents/
  • Number of Cases: 2803
  • Excerpt: Cal Fire (https://www.fire.ca.gov) keeps a record of wildfiresin California. The data hold information about each fire between 2013 and 2024 including the number of acres burned.


  • California_wildfires_size Download .TXT file Open in Data Desk ?
  • Methods: Data Display, Summaries
  • Source: https://www.fire.ca.gov
  • Number of Cases: 1636
  • Excerpt: Cal Fire (https://www.fire.ca.gov) keeps a record of wildfires in California. The data hold information about each fire between 2013 and 2019 including the number of acres burned.




  • CA_House_Prices Download .TXT file Open in Data Desk ?
  • Methods: Displaying Quantitative Data, Summarizing Quantitative Data
  • Source: Prices sampled from Zillow.com in August 2017.
  • Number of Cases: 28
  • Excerpt: Home prices in two neighborhoods near San Francisco. Palo Alto is an older neighborhood and Foster City, a newer one. How do prices compare?


  • Buy_from_a_friend Download .TXT file Open in Data Desk ?
  • Methods: Comparing Groups, Test for Difference between Two Groups
  • Source: J. J. Halpern, “The Transaction Index: A Method for Standardizing Comparisons of Transaction Characteristics Across Different Contexts,” Group Decision and Negotiation, 6: 557–572, 1997
  • Number of Cases: 8
  • Excerpt: A researcher at Cornell University wanted to know how friendship might affect simple sales such as this. She randomly divided subjects into two groups and gave each group descriptions of items they might want to buy. One group was told to imagine buying from a friend whom they expected to see again. The other group […]


  • Burgers Download .TXT file Open in Data Desk ?
  • Methods: Correlation, R-squared, Re-expression, Regression, Residuals, Scatterplot
  • Source: unknown
  • Number of Cases: 7
  • Excerpt: Fast food is often considered unhealthy because muchof it is high in both fat and sodium. But are the two related? The data give the fat and sodium contents of several brands of burgers.