Datafiles

  • Bike safety 2015Download .TXT file Open in Data Desk ?
  • Methods:
  • Source: http://www.bhsi.org/stats.htm
  • Number of Cases: 22
  • Excerpt: The Bicycle Helmet Safety Institute website includes a report on the number of bicycle fatalities per year in the United States. The data gives the counts for the years 1994–2015.




  • Birth orderDownload .TXT file Open in Data Desk ?
  • Methods:
  • Source: Class poll by Velleman
  • Number of Cases: 16
  • Excerpt: A statistics professor at a large university polled his students to find out what their majors were and what position they held in the family birth order. The results are summarized in the table.


  • Birthrates 2015Download .TXT file Open in Data Desk ?
  • Methods: Regression
  • Source: cdc.gov/nchs/
  • Number of Cases: 11
  • Excerpt: Births per 1000 population in the United States, starting in 1965. There has been concern that the birthrate may be declining. A good model for tends in birthrate may allow for some prediction.


  • Blood PressureDownload .TXT file Open in Data Desk ?
  • Methods: Tables
  • Source: Realistic data
  • Number of Cases: 474
  • Excerpt: Does blood pressure, on average, change with age. The data here are two categorical variables: Blood pressure categorized as High, Normal, Low, and Age categorized as under 30, 30-49, and over 50.




  • BodyfatDownload .TXT file Open in Data Desk ?
  • Methods: Multiple Regression, Hypothesis Tests for Means, Regression, Data Display, Hypothesis Tests, Normal Probability Plots, Tables, Confidence Intervals for Proportions, Confidence Intervals for Means
  • Source: BYU Human Performance Research Center http://www.byu.edu/chhp/intro.html#lrc Director: Mark Ricard 116A RB, (801) 378-8958
  • Number of Cases: 250
  • Excerpt: Measurements of 250 men of various ages. The percent of a man’s body that is fat is a matter of concern for health and fitness. But the %bodyfat is difficult and expensive to measure accurately. These data offer correct %bodyfat measurements along with a variety of easier to find measures. Can you build a model […]


  • Bond fundsDownload .TXT file Open in Data Desk ?
  • Methods: Comparing Two Groups
  • Source: www.morningstar.com
  • Number of Cases: 16
  • Excerpt: You have decided to invest in a bond fund and plan to limit your choice of funds to Morningstar “medalist” funds. But now you must choose between a taxable fund and a municipal bond fund that is at least partially tax-free. Which is better? Here are the % returns for the three-year period leading up […]


  • Bookstore salesDownload .TXT file Open in Data Desk ?
  • Methods: Correlation, Regression, Scatterplot
  • Source: invented example
  • Number of Cases: 10
  • Excerpt: Number of sales people working in a bookstore and sales (in $1000) that day. These are realistic but invented data.


  • Boomtowns 2015Download .TXT file Open in Data Desk ?
  • Methods: Data Display
  • Source: http://www.newgeography.com/content/004941-large-cities-rankings-2015-best-cities-job-growth
  • Number of Cases: 70
  • Excerpt: In 2015, the website NewGeography.com listed its ranking of the best cities for job growth in the United States. Nonfarm employment is also provided.


  • BoyleDownload .TXT file Open in Data Desk ?
  • Methods: Regression
  • Source: http://jap.physiology.org/content/87/4/1543
  • Number of Cases: 25
  • Excerpt: Scientist Robert Boyle examined the relationship between the volume in which a gas is contained and the pressure in its container. He used a cylindrical container with a moveable top that could be raised or lowered to change the volume. He measured the Height in inches by counting equally spaced marks on the cylinder, and […]


  • Brain sizeDownload .TXT file Open in Data Desk ?
  • Methods: Regression
  • Source: unknown
  • Number of Cases: 20
  • Excerpt: A group of female college students took a test that measured their verbal IQs and also underwent an MRI scan to measure the size of their brains (in 1000s of pixels).