Datafiles

  • Rock_concert_deaths Download .TXT file Open in Data Desk ?
  • Methods: Boxplots, Comparing Groups, Outliers, Re-expression
  • Source: Crowd Management Strategieswww.crowdsafe.com
  • Number of Cases: 164
  • Excerpt: Crowd Management Strategies monitors accidents at rock concerts. In their database, they list the names and other variables of victims whose deaths were attributed to “crowd crush” at rock concerts. The data give the victims’ ages for data from a one-year period:


  • Ruffles Download .TXT file Open in Data Desk ?
  • Methods: Confidence Intervals for Means, Hypothesis Tests, Hypothesis Tests for Means
  • Source: Unknown
  • Number of Cases: 6
  • Excerpt: Students purchased 6 bags of Lay’s Ruffles potato chips marked with a net weight of 28.3 grams. They carefully weighed the contents of each bag, recording the weights (in grams).


  • Rulers Download .TXT file Open in Data Desk ?
  • Methods: Quality Control
  • Source: invented
  • Number of Cases: 24
  • Excerpt: A company that traditionally made rulers and yardsticks is setting up a manufacturing process to make metersticks. Obviously, accuracy is important for their new product. The company runs a 24-hour production process. Using a calibration set of data they found: X = 1.000 R = 0.0016 They took a sample of 3 metersticks each hour […]


  • Run_times Download .TXT file Open in Data Desk ?
  • Methods: Center, Data Display, Display Quantitative Variable, Shape, Spread, Summaries
  • Source: DeVeaux personal communication
  • Number of Cases: 236
  • Excerpt: Times (in minutes) for one runner to run 4 miles on various courses during a 10-year period.








  • Saratoga_house_prices Download .TXT file Open in Data Desk ?
  • Methods: Comparing Two Groups, Confidence Intervals for Proportions, Multiple Regression Inference, Regression, Regression Inference
  • Source: public records
  • Number of Cases: 1063
  • 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.


  • 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.


  • SAT_scores Download .TXT file Open in Data Desk ?
  • Methods: R-squared, Regression, Residuals
  • Source: Real data—source unspecified to protect privacy
  • Number of Cases: 162
  • Excerpt: Scores on SAT tests for 162 students at the same school. (The identity of the school is not provided for privacy.) How are Math and Verbal scores related? Would a regression model be appropriate? Is there a difference in male and female scores? How would that difference be modeled?


  • School_system Download .TXT file Open in Data Desk ?
  • Methods: Analysis of Variance
  • Source: http://www.scottishhillracing.co.uk
  • Number of Cases: 120
  • Excerpt: A school district superintendent wants to test a new method of teaching arithmetic in the fourth grade at his 15 schools. He plans to select 8 students from each school to take part in the experiment, but to make sure they are roughly of the same ability, he first gives a test to all 120 […]


  • Scorecard Download .TXT file Open in Data Desk ?
  • Methods: Boxplots, Center, Comparing Groups, Conditional Distribution, Contingency Tables, Display Quantitative Variable, Outliers, Re-expression, Shape, Spread, Summaries
  • Source: https://collegescorecard.ed.gov/
  • Number of Cases: 3676
  • Excerpt: President Obama announced the redesigned College Scorecard to give students and families the most reliable, comprehensive, nationally comparable data ever produced on institutional outcomes. These include statistics on debt, federal loan repayment, completion rates, and post-college earnings of alumni in an easy-to-understand format. Key to boosting college completion is ensuring that students and families have […]