Datafiles

  • Antidepressants Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Re-expression, Scatterplot
  • Source: unknown
  • Number of Cases: 19
  • Excerpt: A study compared the effectiveness of several antidepressants by examining the experiments in which they had passed the FDA requirements. Each of those experiments compared the active drug with a placebo, an inert pill given to some of the subjects. In each experiment some patients treated with the placebo had improved, a phenomenon called the […]




  • Archery Download .TXT file Open in Data Desk ?
  • Methods:
  • Source: http://www.espn.com/oly/summer08/results?eventId=258 (men)http://www.espn.com/oly/summer08/results?eventId=211 (women)
  • Number of Cases: 64
  • Excerpt: In Olympic Archery both men and women start with a field of 64 qualifiers. Each archer shoots a round of 72 arrows (total possible score: 720) to establish a seeding position. Then they participate in a single-elimination contest. Thus, the seeding round is the only one that provides data for all archers (because some are […]


  • Attendance_2016 Download .TXT file Open in Data Desk ?
  • Methods: Multiple Regression, Correlation, Regression, Test for Difference between Two Groups, Comparing Two Groups, Scatterplot
  • Source: Attendance from http://www.espn.com/mlb/attendance Won and Lost totals from http://www.baseball-reference.com/leagues/MLB/2016.shtml
  • Number of Cases: 30
  • Excerpt: American League baseball games areplayed under the designated hitter rule, meaning that pitchers, often weak hitters, do not come to bat. Baseball owners believe that the designated hitter rule means more runs scored, which in turn means higher attendance. Is there evidence that more fans attend games if the teams score more runs? The data […]


  • Attendance_2019 Download .TXT file Open in Data Desk ?
  • Methods: Comparing Groups, Correlation, Indicator Variables, Multiple Regression, Partial Regression Plots, R-squared, Re-expression, Regression, Residuals, Scatterplot
  • Source: Attendance from http://www.espn.com/mlb/attendance Won and Lost totals from http://www.baseball-reference.com/leagues/MLB/2019.shtml The road attendance column was created by 'Road Avg'*'# road games'
  • Number of Cases: 30
  • Excerpt: American League baseball games are played under the designated hitter rule, meaning that pitchers, often weak hitters, do not come to bat. Baseball owners believe that the designated hitter rule means more runs scored, which in turn means higher attendance. Is there evidence that more fans attend games if the teams score more runs? The […]


  • ATUS Download .TXT file Open in Data Desk ?
  • Methods: Boxplots, Comparing Groups, Outliers, Re-expression
  • Source: http://www.bls.gov
  • Number of Cases: 9593
  • Excerpt: The American Time Use Survey (ATUS) is an annual survey of Americans over the age of 15 conducted by the Bureau of Labor Statistics (http://www.bls.gov) to better understand how Americans spend their time over the course of a 24 hour period. This is a random sample of 100 (seed = 1) from R.


  • ATUS_sample_100 Download .TXT file Open in Data Desk ?
  • Methods: Confidence Intervals for Means
  • Source: http://www.bls.gov
  • Number of Cases: 100
  • Excerpt: The American Time Use Survey (ATUS) is an annual survey of Americans over the age of 15 conducted by the Bureau of Labor Statistics (http://www.bls.gov) to better understand how Americans spend their time over the course of a 24 hour period. This is a random sample of 100 (seed = 1) from R.


  • Auto_noise_filters Download .TXT file Open in Data Desk ?
  • Methods: Analysis of Variance
  • Source: unknown
  • Number of Cases: 35
  • Excerpt: In a statement to a Senate Public Works Committee, a senior executive of Texaco, Inc., cited a study on the effectiveness of auto filters on reducing noise. Because of concerns about performance, two types of filters were studied, a standard silencer and a new device developed by the Associated Octel Company. Noise is in decibels/10. […]


  • Babysamp_98 Download .TXT file Open in Data Desk ?
  • Methods: Confidence Intervals for Proportions, Sampling Distribution
  • Source: http://www.nber.org/natality/ftp.cdc.gov/pub/Health_Statistics/NCHS/Dataset_Documentation/DVS/natality/ Sample of 200 using set.seed(1) in R
  • Number of Cases: 200
  • Excerpt: A sample of 200 records from 1998 Baby data from http://www.nber.org/natality/ftp.cdc.gov/pub/Health_Statistics/NCHS/Dataset_Documentation/DVS/natality/


  • Bacterial_soap Download .TXT file Open in Data Desk ?
  • Methods:
  • Source: Student project
  • Number of Cases: 32
  • Excerpt: A student decided to investigate just how effective washing with soap is in eliminating bacteria. To do this she tested four different methods—washing with water only, washing with regular soap, washing with antibacterial soap (ABS), and spraying hands with antibacterial spray (AS) (containing 65% ethanol as an active ingredient). Her experiment consisted of one experimental […]


  • Ballplayer_births Download .TXT file Open in Data Desk ?
  • Methods: Chi Square Tests
  • Source: Unknown
  • Number of Cases: 12
  • Excerpt: It has been suggested that children born in the summer have an advantage over their peers when it comes to sports, perhaps because they can be outdoors when they are young. The data report the number of professional ballplayers born in each month of the year for one season of professional baseball.


  • Barbershop_music Download .TXT file Open in Data Desk ?
  • Methods: Inference
  • Source: Results of a barbershop competition as reported by Velleman
  • Number of Cases: 34
  • Excerpt: At a barbershop music singing competition, choruses are judged on three scales: Music (quality of the arrangement, etc.), Performance, and Singing. The scales are supposed to be independent of each other, and each is scored by a different judge, but a friend claims that he can predict a chorus’s singing score from the other two […]