Datafiles
- COL_Worldwide_2020 Download .TXT file Open in Data Desk ?
- Methods: Boxplots, Center, Confidence Intervals for Means, Correlation, Data Display, Display Quantitative Variable, Hypothesis Tests, Multiple Regression, Scatterplot, Shape, Spread, Summaries, Summarizing Quantitative Data
- Source: http://www.numbeo.com/cost-of-living
- Number of Cases: 441
- Excerpt: The Cost of Living Index (COL) summarizes the cost of a representative market basket of goods that includes groceries, COL to determine living allowances and salaries for employees. Inflation is often measured by how much the COL changes from year to year. Relative COLs can be found for different cities. We have data giving COL […]
- Companies Download .TXT file Open in Data Desk ?
- Methods: Boxplots, Comparing Groups, Correlation, Outliers, Re-expression, Regression, Scatterplot
- Source: Forbes magazine
- Number of Cases: 79
- Excerpt: Facts about companies selected from the Forbes 500 listfor 1986. This is a 1/10 systematic sample from the alphabetical list of companies. The Forbes 500 includes all companies in the top 500 on any of the criteria, and thus has almost 800 companies in the list.
- Congestion_cost Download .TXT file Open in Data Desk ?
- Methods: Correlation, Regression, Scatterplot
- Source: Texas Transportation Institute
- Number of Cases: 65
- Excerpt:
- Consumer_spending Download .TXT file Open in Data Desk ?
- Methods: Regression, Correlation, Scatterplot
- Source: Data adapted from real spending data from American Express
- Number of Cases: 150
- Excerpt:
- Cost_of_Living_2017 Download .TXT file Open in Data Desk ?
- Methods: Multiple Regression, Correlation, Regression, Scatterplot
- Source: numbeo.com
- Number of Cases: 511
- Excerpt:
- Cramming Download .TXT file Open in Data Desk ?
- Methods: Correlation, Data Display, Inference, Re-expression, Regression, Summaries
- Source: unknown
- Number of Cases: 25
- Excerpt: Students in two basic Spanish classes were required to learn 50 new vocabulary words. One group of 45 students received the list on Monday and studied the words all week. Statistics summarizing this group’s scores on Friday’s quiz are given. The other group of 25 students did not get the vocabulary list until Thursday. They also […]
- Crocodile_lengths Download .TXT file Open in Data Desk ?
- Methods: Correlation, Re-expression, Regression
- Source: Unknown SDM 4
- Number of Cases: 32
- Excerpt: The ranges inhabited by the Indian gharial crocodile and the Australian saltwater crocodile overlap in Bangladesh. Suppose a very large crocodile skeleton is found there, and we wish to determine the species of the animal. Wildlife scientists have measured the lengths of the heads and the complete bodies of several crocs (in centimeters) of each […]
- Cyclists_2015 Download .TXT file Open in Data Desk ?
- Methods: Regression, Correlation, Scatterplot
- Source: National Highway Transportation Safety Agency, found at www-nrd.nhtsa.dot.gov
- Number of Cases: 16
- Excerpt:
- Depression_and_the_internet Download .TXT file Open in Data Desk ?
- Methods: Correlation, Re-expression, Regression
- Source: "Internet paradox. A social technology that reduces social involvement and psychological well-being?", Kraut R1, Patterson M, Lundmark V, Kiesler S, Mukopadhyay T, Scherlis W., Am Psychol. 1998 Sep;53(9):1017-31.
- Number of Cases: 169
- Excerpt: The September 1998 issue of the American T Psychologist published an article by Kraut et al. that reported on an experiment examining “the social and psychological impact of the Internet on 169 people in 73 households during their first 1 to 2 years online.” In the experiment, 73 households were offered free Internet access for […]
- Disk_drives_2016 Download .TXT file Open in Data Desk ?
- Methods: Correlation, Regression, Scatterplot
- Source: https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=32+TB+hard+drive&rh=i%3Aaps%2Ck%3A32+TB+hard+drive
- Number of Cases: 9
- Excerpt: Disk drive capacity is often given in terabytes (TB), where 1 TB = 1000 gigabytes, or about a trillion bytes. A search of prices for external disk drives on Amazon.com in mid-2016 found the data on capacity and price.
- 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.
- 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.