Datafiles
- Credit_card_charges Download .TXT file Open in Data Desk ?
- Methods: Center, Data Display, Display Quantitative Variable, Shape, Spread, Summaries
- Source: modified from raw
- Number of Cases: 500
- Excerpt: A credit card company wants to see how much customers in a particular segment of their market use their credit card. They have provided data on the amount spent by 500 selected customers during a 3-month period and have asked you to summarize the expenditures. (Data are realistic, but disguised for confidentiality.)
- 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 […]
- Crowdedness Download .TXT file Open in Data Desk ?
- Methods: Nonparametric Methods, Outliers, Re-expression, Regression, Residuals
- Source: Chance magazine article summer 2005 by Vasilescu and Wainer, citing data fromn the United Nations Center for Human Settlements.
- Number of Cases: 62
- Excerpt: In a Chance magazine article (Summer 2005), Danielle Vasilescu and Howard Wainer used data from the United Nations Center for Human Settlements to investigate aspects of living conditions for several countries. Among the variables they looked at were the country’s per capita gross domestic product (GDP, in $) and Crowdedness, defined as the average number […]
- Cuckoos_and_quality_control Download .TXT file Open in Data Desk ?
- Methods: Nonparametric Methods
- Source: The data aredrawn from the work of O. M. Latter in 1902 and were used in a fundamental textbook on statistical quality control by L. H. C. Tippett (1902–1985), one of the pioneers in that field.
- Number of Cases: 16
- Excerpt:
- Cups Download .TXT file Open in Data Desk ?
- Methods: Analysis of Variance, Boxplots, Comparing Groups, Outliers, Re-expression
- Source: From Stat 231 De Veaux’s class project
- Number of Cases: 32
- Excerpt:
- 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:
- Dairy_sales Download .TXT file Open in Data Desk ?
- Methods: Inference
- Source: unknown
- Number of Cases: 12
- Excerpt: Peninsula Creameries sells both cottage cheese and ice cream. The CEO recently noticed that in months when the company sells more cottage cheese, it seems to sell more ice cream as well.
- Dalia Download .TXT file Open in Data Desk ?
- Methods: Data Displays
- Source: Student experiment from De Veaux
- Number of Cases: 13356
- Excerpt: Dalia collects data via smartphone from users worldwide. This survey asked (among many other questions) about access to cars and the use of ride-hailing apps
- Darts Download .TXT file Open in Data Desk ?
- Methods: Multifactor Analysis of Variance
- Source: Student experiment from De Veaux
- Number of Cases: 36
- Excerpt:
- Deaths_2018 Download .TXT file Open in Data Desk ?
- Methods: Boxplots, Comparing Groups, Outliers, Re-expression
- Source: https://www.fueleconomy.gov/feg/epadata/21data.zip
- Number of Cases: 20
- Excerpt:
- Defect_monitoring Download .TXT file Open in Data Desk ?
- Methods: Quality Control
- Source: unknown
- Number of Cases: 20
- Excerpt: The data are from a productionprocess that makes 250 units each hour. The data were collected over a normal 12-hour shift one day.
- Defect_monitoring_second_product Download .TXT file Open in Data Desk ?
- Methods: Quality Control
- Source: unknown
- Number of Cases: 20
- Excerpt: The data are from a productionprocess that makes 250 units each hour. The data were collected over a normal 12-hour shift one day.