Chi-square Tests of Independence (Chi-square Tests for Two-Way Tables)

I introduce the chi-square test of independence and work through an example. The binge drinking data is from: Wechsler H, Lee JE, Kuo M, Lee H. (2000). College Binge Drinking in the 1990s: A Continuing Problem — Results of the Harvard School of Public Health 1999 College Alcohol Study. Journal of American College Health. 2000. 48 (10): 199-210.