Format
A data frame with 28 observations on the following 3 variables.
NHLTeam Team name
NHL_Malevolence Score reflecting the "malevolence" of a
team's uniform
ZPenMin Z-score for penalty minutes
Source
Frank and Gilovich, "The Dark Side of Self- and Social Perception:
Black Uniforms and Aggression in Professional Sports", Journal of
Personality and Social Psychology, Vol. 54, No. 1, 1988, p. 74-85.