Datafiles
- Drivers_licenses_2023 Download .TXT file Open in Data Desk ?
- Methods: Contingency Tables
- Source: http://www.fhwa.dot.gov/policyinformation/statistics.cfm
- Number of Cases:
- Excerpt: Number of licensed U.S. drivers (in millions) by age and sex in 2023
- Drivers_licenses_2020 Download .TXT file Open in Data Desk ?
- Methods: Conditional Distribution, Contingency Tables
- Source: http://www.fhwa.dot.gov/policyinformation/statistics.cfm
- Number of Cases: 21
- Excerpt:
- Drivers_Licenses_2014 Download .TXT file Open in Data Desk ?
- Methods: Tables
- Source: http://www.fhwa.dot.gov/policyinformation/statistics.cfm
- Number of Cases: 16
- Excerpt:
- Downloads Download .TXT file Open in Data Desk ?
- Methods: Displaying Quantitative Data, Summarizing Quantitative Data
- Source: Manufactured data
- Number of Cases: 24
- Excerpt:
- Downloading Download .TXT file Open in Data Desk ?
- Methods: Analysis of Variance
- Source: student project
- Number of Cases: 48
- Excerpt: To see how much of a difference time of day made on the speed at which he could download files, a college sophomore performed an experiment. He placed a file on a remote server and then proceeded to download it at three different time periods of the day. He downloaded the file 48 times in […]
- Down_the_Drain Download .TXT file Open in Data Desk ?
- Methods: Correlation, Re-expression, Regression
- Source: Classical calculus exercise
- Number of Cases: 7
- Excerpt: Most water tanks have a drain plug so that the tank may be emptied when it’s to be moved or repaired. How long it takes a certain size of tank to drain depends on the size of the plug, as shown in the table.
- Dow_Jones_2020 Download .TXT file Open in Data Desk ?
- Methods: Correlation, Re-expression, Regression
- Source: https://fred.stlouisfed.org
- Number of Cases: 2610
- Excerpt:
- Dow_Jones_2017 Download .TXT file Open in Data Desk ?
- Methods: Time Series Analysis
- Source: https://fred.stlouisfed.org
- Number of Cases: 259
- Excerpt:
- Dow_Jones_2015 Download .TXT file Open in Data Desk ?
- Methods: Correlation, Re-expression, Regression
- Source: finance.yahoo.com
- Number of Cases: 44
- Excerpt: The Dow Jones stock index measures the performance of the stocks of America’s largest companies. A regression of the Dow prices on years 1972–2015 appears to be successful, but the residuals raise some questions.
- Doritos 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: Some students checked 6 bags of Doritos marked with a net weight of 28.3 grams. They carefully weighed the contents of each bag and recorded the weights in grams.
- Donor_profiles Download .TXT file Open in Data Desk ?
- Methods: Confidence Intervals for Means, Hypothesis Tests
- Source: PVA data set sample
- Number of Cases: 916
- Excerpt:
- Doctors_and_life_expectancy Download .TXT file Open in Data Desk ?
- Methods: Correlation, Outliers, Re-expression, Regression, Residuals, Scatterplot
- Source: unknown
- Number of Cases: 40
- Excerpt: Life expectancy at birth, TV’s per capita, and doctor’s per capita for countries of the world. Doctors predict life expectancy, but is that causal? TVs also predict life expectancy.