Datafiles

  • Penguins Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Outliers, Re-expression, Regression, Residuals
  • Source: Jessica Meir personal communication
  • Number of Cases: 125
  • Excerpt: Emperor penguins are the most accomplished divers among birds, making routine dives of 5–12 minutes, with the longest recorded dive over 27 minutes. These birds can also dive to depths of over 500 meters! Since air-breathing animals like penguins must hold their breath while submerged, the duration of any given dive depends on how much […]


  • Personal_appearance Download .TXT file Open in Data Desk ?
  • Methods: Chi Square Tests
  • Source: GfK Roper Reports‹› Worldwide Survey
  • Number of Cases: 7
  • Excerpt: The GfK Roper Reports® Worldwide Survey asked 30,000 consumers in 23 countries about their attitudes on health, beauty, and other personal values. One question participants were asked was how important their personal appearance is to them. The data are a contingency table of responses to this question by age decade.


  • Pi Download .TXT file Open in Data Desk ?
  • Methods: Chi Square Tests
  • Source: pi
  • Number of Cases: 10
  • Excerpt: Many people know the mathematical constant p is approxi-mately 3.14. But that’s not exact. To be more precise, here are 20 decimal places: 3.14159265358979323846. Still not exact, though. In fact, the actual value is irrational; a decimal that goes on forever without any repeating pattern. But notice that there are no 0’s and only one […]


  • Pima Download .TXT file Open in Data Desk ?
  • Methods: Multiple Regression Inference, Regression Inference
  • Source: UCI Machine Learning Repository http://archive.ics.uci.edu/ml/datasets /Pima+Indians+Diabetes. No longer active. 11 observations deleted because BMI was 0
  • Number of Cases: 757
  • Excerpt: The Pima Indians of southern Arizona are a unique community. Their ancestors were among the first people to cross over into the Americas some 30,000 years ago. For at least two millennia, they have lived in the Sonoran Desert near the Gila River. Known throughout history as a generous people, they have given of themselves […]


  • Pima indians Download .TXT file Open in Data Desk ?
  • Methods: Regression
  • Source: UCI Machine Learning Repository http://archive.ics.uci.edu/ml/datasets /Pima+Indians+Diabetes.
  • Number of Cases: 768
  • Excerpt: The Pima Indians of southern Arizona are a unique community. Their ancestors were among the first people to cross over into the Americas some 30,000 years ago. For at least two millennia, they have lived in the Sonoran Desert near the Gila River. Known throughout history as a generous people, they have given of themselves […]


  • Pizza_prices Download .TXT file Open in Data Desk ?
  • Methods: Boxplots, Center, Comparing Groups, Correlation, Data Display, Display Quantitative Variable, Displaying Quantitative Data, Outliers, Re-expression, Regression, Scatterplot, Shape, Spread, Summaries, Summarizing Quantitative Data
  • Source: From Norean Sharpe personal communication
  • Number of Cases: 156
  • Excerpt: Sales volume and price of a slice of plain pizza ($) in Baltimore, Dallas, Chicago, and Denver for 156 weeks. How are prices and sales volumes related? Are patterns the same across cities?




  • Planets Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Outliers, Re-expression, Regression, Residuals, Scatterplot
  • Source: http://www.enchantedlearning.com/subjects/astronomy/planets/
  • Number of Cases: 9
  • Excerpt: On August 24, 2006, the International Astronomical Union voted that Pluto is not a planet. Some members of the public have been reluctant to accept that decision. The data show the average distance of each of the traditional nine planets from the sun. Is there a pattern? Does Pluto fit with the other “official” planets?


  • Planets_more_data Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Re-expression, Scatterplot
  • Source: http://www.windows2universe.org/our_solar_system/planets_table.html
  • Number of Cases: 9
  • Excerpt: On August 24, 2006, the International Astronomical Union voted that Pluto is not a planet. Some members of the public have been reluctant to accept that decision. The data show a variety of facts about the 8 planets and Pluto. Exercises consider two models for the planets. Does Pluto behave like a planet?


  • Police_pay_2016 Download .TXT file Open in Data Desk ?
  • Methods: Multiple Regression
  • Source: https://www.how-to-become-a-police-officer.com/salaries/https://ucr.fbi.gov/crime-in-the-u.s/2016/crime-in-the-u.s.-2016/tables/table-3http://www.governing.com/gov-data/high-school-graduation-rates-by-state.html
  • Number of Cases: 51
  • Excerpt:


  • Polling Download .TXT file Open in Data Desk ?
  • Methods: Comparing Two Groups, Correlation, Regression
  • Source: Polling data from Gallup
  • Number of Cases: 14
  • Excerpt: How accurate are pollsters in predicting the outcomes of Congressional elections? The table shows the actual number of Democrat seats in the House of Representatives and the number predicted by the Gallup organization for nonpresidential election years in the 4 decades following World War II.


  • Popcorn Download .TXT file Open in Data Desk ?
  • Methods: Confidence Intervals for Means, Hypothesis Tests, Hypothesis Tests for Means
  • Source: De Veaux class project
  • Number of Cases: 8
  • Excerpt: Yvon Hopps ran an experiment to determine optimum power and time settings for microwave popcorn. His goal was to find a combination of power and time that would deliver high-quality popcorn with less than 10% of the kernels left unpopped, on average. After experimenting with several bags, he determined that power 9 at 4 minutes […]