References/Notes/Attributions:
Source
Data (RicciData.csv ) and documentation (Ricci.txt) downloaded from http://www.amstat.org/publications/jse/jse_data_archive.htm
An article on using these data: Miao, W. (2011) "Did the Results of Promotion Exams Have a Disparate Impact on Minorities? Using Statistical Evidence in Ricci v. DeStefano," JSE 19:1 at www.amstat.org/publications/jse/v19n1/wilson.pdf