Chapter 14.3, Problem 25E

In an investigation of alcohol use among college students, each male student in a sample was categorized both according to age group and according to the number of heavy drinking episodes during the previous 30 days (“Alcohol Use in Students Seeking Primary Care Treatment at University Health Services,” J. of Amer. College Health, 2012: 217–225).

		Age Group
		18-20	21–23	≥24
# Episodes	None	357	293	592
	1–2	218	285	354
	3–4	184	218	185
	≥5	328	331	147

Does there appear to be an association between extent of binge drinking and age group in the population from which the sample was selected? Carry out a test of hypotheses at significance level .01.