Datafiles
- Men’s_weekly_earnings_2013 Download .TXT file Open in Data Desk ?
- Methods: Time Series Analysis
- Source: U.S. Bureau of Labor Statistics; www.bls.gov
- Number of Cases: 41
- Excerpt: Quarterly median weekly earnings from the first quarter of 2003 through the first quarter of 2013 for men, 25 years of age or older, in the United States
- Memory Download .TXT file Open in Data Desk ?
- Methods: Comparing Groups, Comparing Two Groups, Test for Difference between Two Groups
- Source: Solomon,P.R., Adams,F., Silver, A., Zimmer, J. and De Veaux, R.D. Journal of the American Medical Assocation Vol. 288 pp.835-840 (2002), “Ginkgo for Memory Enhancement A Randomized Controlled Trial”
- Number of Cases: 104
- Excerpt: In an experiment to test ginkgo bloba, subjectswere assigned randomly to take ginkgo biloba supplements or a placebo. Their memory was tested to see whether it improved.
- Mazes_and_smells Download .TXT file Open in Data Desk ?
- Methods: Inference
- Source: A. R. Hirsch and L. H. Johnston, “Odors and Learning.” Chicago: Smell and Taste Treatment and Research Foundation
- Number of Cases: 21
- Excerpt: Can pleasant smells improve learning? Researchers timed 21 subjects as they tried to complete paper-and-pencil mazes. Each subject attempted a maze both with and without the presence of a floral aroma. Subjects were randomized with respect to whether they did the scented trial first or second. Is there any evidence that the floral scent improved […]
- Maze Download .TXT file Open in Data Desk ?
- Methods: Confidence Intervals for Means, Hypothesis Tests, Hypothesis Tests for Means
- Source: Unknown
- Number of Cases: 21
- Excerpt: Psychology experiments sometimes involve testing the ability of rats to navigate mazes. The mazes are classified according to difficulty, as measured by the mean length of time it takes rats to find the food at the end. One researcher needed a maze that will take rats an average of about one minute to solve. He […]
- Math_scores_2019 Download .TXT file Open in Data Desk ?
- Methods: Boxplots, Center, Display Quantitative Variable, Displaying Quantitative Data, Shape, Spread, Summaries, Summarizing Quantitative Data
- Source: https://www.nationsreportcard.gov/profiles/stateprofile?chort=2&sub=MAT&sj=AL&sfj=NP&st=MN&year=2019R3
- Number of Cases: 52
- Excerpt: The National Center for Education Statistic reports average mathematics achievement scores for eighth graders in all 50 states.
- Math_scores_2013 Download .TXT file Open in Data Desk ?
- Methods: Data Display
- Source: Nces.ed.gov/nationsreportcard/
- Number of Cases: 50
- Excerpt: The National Center for Education Statistic reports average mathematics achievement scores for eighth graders in all 50 states.
- Math scores 2023 Download .TXT file Open in Data Desk ?
- Methods: Summaries
- Source: https://www.nationsreportcard.gov/profiles/stateprofile?chort=2&sub=MAT&sj=AL&sfj=NP&st=MN&year=2019R3
- Number of Cases: 52
- Excerpt: The National Center for Education Statistic reports average mathematics achievement scores for eighth graders in all 50 states.
- Marriage_age_2024 Download .TXT file Open in Data Desk ?
- Methods:
- Source: https://www.census.gov/data/tables/time-series/demo/families/marital.html
- Number of Cases: 83
- Excerpt: The estimated median age at fist marriage by sex from 1890 to 2017 is provided by the U.S. Census bureau. Since 1960, marriage ages have been increasing steadily. Has the difference between men’s and women’s first marriage age changed? Starting in 2019 Census includes same-sex marriages. Does that account for the “bump” in the series […]
- Marriage_age_2019 Download .TXT file Open in Data Desk ?
- Methods: Multiple Regression Inference, Outliers, Re-expression, Regression, Regression Inference, Residuals
- Source: https://www.census.gov/data/tables/time-series/demo/families/marital.html
- Number of Cases: 79
- Excerpt: The estimated median age at fist marriage by sex from 1890 to 2017 is provided by the U.S. Census bureau. Since 1960, marriage ages have been increasing steadily. Has the difference between men’s and women’s first marriage age changed?
- Marriage_age_2017 Download .TXT file Open in Data Desk ?
- Methods: Regression
- Source: https://www.census.gov/data/tables/time-series/demo/families/marital.html
- Number of Cases: 78
- Excerpt: The estimated median age at fist marriage by sex from 1890 to 2017 is provided by the U.S. Census bureau. Since 1960, marriage ages have been increasing steadily. Has the difference between men’s and women’s first marriage age changed?
- Marriage_age_2016 Download .TXT file Open in Data Desk ?
- Methods: Boxplots
- Source: https://factfinder.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=ACS_16_1YR_B12007&prodType=tablehttp://www.census.gov/population/socdemo/hh-fam/tabMS-2.pdf Notes: 2005 to 2015 revised in top link
- Number of Cases: 76
- Excerpt: Age at first marriage has changed over the course of the past century. In addition, the difference in the age of the husband and of the wife at first marriage has changed. Both the ages and the difference in ages can be interesting to analyze.
- Marriage_age_2015 Download .TXT file Open in Data Desk ?
- Methods: Regression
- Source: https://factfinder.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=ACS_16_1YR_B12007&prodType=tablehttp://www.census.gov/population/socdemo/hh-fam/tabMS-2.pdf Notes: 2005 to 2015 revised in top link
- Number of Cases: 75
- Excerpt: Age at first marriage has changed over the course of the past century. In addition, the difference in the age of the husband and of the wife at first marriage has changed. Both the ages and the difference in ages can be interesting to analyze.