Datafiles

  • Mozart Download .TXT file Open in Data Desk ?
  • Methods: Quality Control, Confidence Intervals for Means
  • Source: Rauscher FH, Shaw GL, Ky KN. Listening to Mozart enhances spatial-temporal reasoning: toward a neurophysiological basis. Neurosci Lett 1995;185: 44-7
  • Number of Cases: 125
  • Excerpt: In a study published in the journal PsychologicalScience, Rauscher, Shaw, and Ky reported that when students were given a spatial reasoning section of a standard IQ test, those who listened to Mozart for 10 minutes improved their scores more than those who simply sat quietly.






  • Music_library Download .TXT file Open in Data Desk ?
  • Methods: Boxplots, Comparing Groups, Outliers, Re-expression
  • Source: Class survey De Veaux Stat 201
  • Number of Cases: 192
  • Excerpt: Students in an introductory statistics course were asked how many songs theyhad in their digital music library.




  • Mutual_fund_returns_2017 Download .TXT file Open in Data Desk ?
  • Methods: Comparing Two Groups, Correlation, Regression, Scatterplot
  • Source: http://news.morningstar.com/fund-category-returns/
  • Number of Cases: 98
  • Excerpt: Mutual fund returns for a sample of mutual funds sampled in 2017. These are a good source of data for paired methods.


  • Mutual_funds_2016 Download .TXT file Open in Data Desk ?
  • Methods: Displaying Quantitative Data, Summarizing Quantitative Data
  • Source: http://time.com/money/4616747/best-mutual-funds-etfs-money-50/
  • Number of Cases: 50
  • Excerpt: On December 30, 2016, the Standard and Poor’s (S&P) 500 index hit an all-time high. During 2016, the S&P returned 12.25%. Here is a histogram of the 2016 net returns (total return – annual expenses) for Money Magazine’s 50 Best Mutual Funds and ETFs. The net returns are computed from the data given by Money […]


  • Nail_polish Download .TXT file Open in Data Desk ?
  • Methods: Experiment Design, Experiments
  • Source: personal communication
  • Number of Cases: 30
  • Excerpt: A student, preparing for a triathlon, suspected that the 45 minutes each day she spent training in a chlorinated pool was damaging her nail polish. She wished to investigate whether the color of the nail polish might make a difference. She mounted acrylic nails on sticks and polished them with two different color nail polishes. […]






  • Nashville Download .TXT file Open in Data Desk ?
  • Methods: Hypothesis Tests, Hypothesis Tests for Means, Statistical Inference
  • Source: unknown
  • Number of Cases: 70
  • Excerpt: A hospital in Nashville is considering changes to the prenatal care they offer. They collected the gestation times of 70 pregnancies that ended in live births. The established human gestation time is 266 days.