Datafiles

  • Cranberry_juice Download .TXT file Open in Data Desk ?
  • Methods: Chi Square Tests
  • Source: Unknown
  • Number of Cases: 150
  • Excerpt: It’s common folk wisdom that drinking cranberry juice can help prevent urinary tract infections in women. In 2001, the British Medical Journal reported the results of a Finnish study in which three groups of 50 women were monitored for these infections over 6 months. One group drank cranberry juice daily, another group drank a lactobacillus […]


  • Craters Download .TXT file Open in Data Desk ?
  • Methods: Multiple Regression Inference, Regression, Regression Inference
  • Source: Earth Impact Databasehttp://www.unb.ca/passc/ImpactDatabase/
  • Number of Cases: 168
  • Excerpt: Meteor Crater in Arizona was the first recognized impact crater and was identified as such only in the 1920s. With the help of satellite images, more and more craters have been identified; now more than 180 are known. These, of course, are only a small sample of all the impacts the earth has experienced: Only […]


  • Crawling Download .TXT file Open in Data Desk ?
  • Methods: Confidence Intervals for Means, Inference, Multiple Regression Inference, Regression, Regression Inference
  • Source: Janette B. Benson,"Season of birth and onset of locomotion: Theoretical and methodological implications,"Infant Behavior and Development 16:1,pp 69-81
  • Number of Cases: 12
  • Excerpt: Researchers at the University of Denver Infant Study Center wondered whether temperature might influence the age at which babies learn to crawl. Perhaps the extra clothing that babies wear in cold weather would restrict movement and delay the age at which they started crawling. Data were collected on 208 boys and 206 girls. Parents reported […]






  • Credit_card_charges Download .TXT file Open in Data Desk ?
  • Methods: Center, Data Display, Display Quantitative Variable, Shape, Spread, Summaries
  • Source: modified from raw
  • Number of Cases: 500
  • Excerpt: A credit card company wants to see how much customers in a particular segment of their market use their credit card. They have provided data on the amount spent by 500 selected customers during a 3-month period and have asked you to summarize the expenditures. (Data are realistic, but disguised for confidentiality.)


  • Crocodile_lengths Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Re-expression, Regression
  • Source: Unknown SDM 4
  • Number of Cases: 32
  • Excerpt: The ranges inhabited by the Indian gharial crocodile and the Australian saltwater crocodile overlap in Bangladesh. Suppose a very large crocodile skeleton is found there, and we wish to determine the species of the animal. Wildlife scientists have measured the lengths of the heads and the complete bodies of several crocs (in centimeters) of each […]


  • Crowdedness Download .TXT file Open in Data Desk ?
  • Methods: Nonparametric Methods, Outliers, Re-expression, Regression, Residuals
  • Source: Chance magazine article summer 2005 by Vasilescu and Wainer, citing data fromn the United Nations Center for Human Settlements.
  • Number of Cases: 62
  • Excerpt: In a Chance magazine article (Summer 2005), Danielle Vasilescu and Howard Wainer used data from the United Nations Center for Human Settlements to investigate aspects of living conditions for several countries. Among the variables they looked at were the country’s per capita gross domestic product (GDP, in $) and Crowdedness, defined as the average number […]








  • Dairy_sales Download .TXT file Open in Data Desk ?
  • Methods: Inference
  • Source: unknown
  • Number of Cases: 12
  • Excerpt: Peninsula Creameries sells both cottage cheese and ice cream. The CEO recently noticed that in months when the company sells more cottage cheese, it seems to sell more ice cream as well.