The Family and Consumer Sciences Research Journal (Mar. 2005) published a study of col...

The Family and Consumer Sciences Research Journal (Mar. 2005) published a study of college students and drinking. One of the researchers’ main objectives was to segment college students according to their rates of alcohol consumption. A segmentation was developed based on survey responses to the questions on frequency of drinking and average number of drinks per occasion for a sample of 657 students. Four types, or groups, of college drinkers emerged: non/seldom drinkers, social drinkers, typical binge drinkers, and heavy binge drinkers. Frequencies are shown in the accompanying SPSS printout. Is this sufficient evidence to indicate that the true proportions in the population of college students are different?