Datafiles

  • Fuel_efficiency Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Outliers, Re-expression, Regression, Residuals, Scatterplot
  • Source: Consumer Reports
  • Number of Cases: 84
  • Excerpt: We know from common sense and from Physics that heavier cars need more fuel, but exactly how does a car’s weight affect its fuel efficiency? The data set continues data on 38 cars including their fuel efficiency in miles per gallon measured on a track.


  • Full_moon Download .TXT file Open in Data Desk ?
  • Methods: Chi Square Tests
  • Source: Unknown
  • Number of Cases: 130
  • Excerpt: Some people believe that a full moon elicits unusual behavior in people. The table shows the number of arrests made in a small town during weeks of six full moons and six other randomly selected weeks in the same year. Is there evidence of a difference in the types of illegal activity that take place?


  • Gas_additives Download .TXT file Open in Data Desk ?
  • Methods: Multifactor Analysis of Variance
  • Source: unknown
  • Number of Cases: 60
  • Excerpt: An experiment to test a new gasoline additive, Gasplus, was performed on three different cars: a sports car, a minivan, and a hybrid. Each car was tested with both Gasplus and regular gas on 10 different occasions and their gas mileage was recorded.


  • Gas_Prices_2016 Download .TXT file Open in Data Desk ?
  • Methods: Boxplots
  • Source: https://www.eia.gov/dnav/pet/pet_pri_gnd_dcus_nus_w.htm
  • Number of Cases: 1287
  • Excerpt: Weekly gas prices for regular gas in the United States as reported by the U.S. Energy Information Administration for 2009 through August 2016




  • Gas_prices_2018 Download .TXT file Open in Data Desk ?
  • Methods: Boxplots
  • Source: https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=PET&s=EMM_EPM0_PTE_NUS_DPG&f=W
  • Number of Cases: 301
  • Excerpt: Monthly gas prices for all grades and all formulations ($/gallon) in the United States as reported by the U.S. Energy Information Administration for 1993 through August 2018. Prices are available at the cite for all weeks. Data here are for the final week of each month.


  • Gas_prices_2019 Download .TXT file Open in Data Desk ?
  • Methods: Boxplots, Comparing Groups, Outliers, Re-expression
  • Source: https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=PET&s=EMM_EPM0_PTE_NUS_DPG&f=W
  • Number of Cases: 319
  • Excerpt: Monthly gas prices for all grades and all formulations ($/gallon) in the United States as reported by the U.S. Energy Information Administration for 1993 through October 2019. Prices are available at the cite for all weeks. Data here are for the final week of each month.


  • Gas_prices_monthly Download .TXT file Open in Data Desk ?
  • Methods: Time Series Analysis
  • Source: unknown
  • Number of Cases: 66
  • Excerpt: Many drivers of cars that can run on regular gas actually buy premium in the belief that they will get better gas mileage. To test that belief, we use 10 cars from a company fleet in which all the cars run on regular gas. Each car is filled first with either regular or premium gasoline, […]


  • Gasoline Download .TXT file Open in Data Desk ?
  • Methods: Blocking, Paired Data
  • Source: unknown
  • Number of Cases: 10
  • Excerpt: Many drivers of cars that can run on regular gas actually buy premium in the belief that they will get better gas mileage. To test that belief, we use 10 cars from a company fleet in which all the cars run on regular gas. Each car is filled first with either regular or premium gasoline, […]


  • Gators Download .TXT file Open in Data Desk ?
  • Methods: R-squared, Regression, Residuals
  • Source: unknown
  • Number of Cases: 25
  • Excerpt: Wildlife researchers monitor many wildlife populations by taking aerial photographs. Can they estimate the weights of alligators accurately from the air? Here are data on the Weight of alligators (in pounds) and their Length (in inches).