Datafiles



  • Manatees_2015 Download .TXT file Open in Data Desk ?
  • Methods:
  • Source: Florida Fish and Wildlife Conservation Commission(myfwc.com/research/manatee/) and the U.S. Coast Guard Office of Auxiliary and Boating Safety (https://www.uscgboating.org/library/accident-statistics/Recreational-Boating-Statistics-2015.pdf)
  • Number of Cases: 33
  • Excerpt: Manatees are gentle mammals that live in the waters off the coast of Florida and a few other places. Unfortunately, many are killed each year in collisions with powerboats. Marine biologists warn that the growing number of powerboats registered in Florida threatens the existence of manatees. The data here are the number of manatees killed […]


  • Manatees_2017 Download .TXT file Open in Data Desk ?
  • Methods: Correlation, Re-expression, Regression
  • Source: Florida Fish and Wildlife Conservation Commission (https://myfwc.com/research/manatee/rescue-mortality-response/statistics/mortality/yearly/) NOTE: just get the column from watercraft manatee deaths and the U.S. Coast Guard Office of Auxiliary and Boating Safety (https://www.uscgboating.org/library/accident-statistics/Recreational-Boating-Statistics-2017.pdf) NOTE: Just change the year in the pdf url to get the next boating and safety pdf. Scroll all the way to the bottom for the last table (somewhere around pg 70 on each pdf and find the table titled "RECREATIONAL VESSEL REGISTRATION DATA BY STATE". Get the number for FL for number of registration.
  • Number of Cases: 35
  • Excerpt: Manatees are gentle mammals that live in the waters off the coast of Florida and a few other places. Unfortunately, many are killed each year in collisions with powerboats. Marine biologists warn that the growing number of powerboats registered in Florida threatens the existence of manatees. The data here are the number of manatees killed […]


  • Marijuana_2015 Download .TXT file Open in Data Desk ?
  • Methods: Center, Data Display, Display Quantitative Variable, Shape, Spread, Summaries
  • Source: The European School Survey project on Alcohol and Other Drugs (www.espad.org)
  • Number of Cases: 56
  • Excerpt: In 2015 the Council of Europe published a report entitled The European School Survey Project on Alcohol and Other Drugs (www.espad.org). Among other issues, the survey investigated the percent-ages of 16-year-olds who had used marijuana. The data are the results for 38 European countries.


  • Market_value Download .TXT file Open in Data Desk ?
  • Methods: Comparing Two Groups
  • Source: unknown
  • Number of Cases: 45
  • Excerpt: Real estate agents want to set correctlythe price of a house that’s about to go on the real estate market. They must choose a price that strikes a balance between one that is so high that the house takes too long to sell and one that’s so low that not enough value will go to […]




  • 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.


  • 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_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_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_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 […]


  • 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.