The table refers to a survey4 of senior high school students in Dayton, Ohio. It cross-tabulates whether a student had ever smoked cigarettes and whether a student had ever drunk alcohol. The table also shows MINITAB output of conditional distributions.
a. Describe the strength of association using the difference between users and nonusers of cigarettes in the proportions who have used alcohol. Interpret.
b. Describe the strength of association using the difference between users and nonusers of alcohol in the proportions who have used cigarettes. Interpret.
c. Describe the strength of association using the relative risk of using cigarettes, comparing those who have used or not used alcohol. Interpret.

Transcribed Image Text:

Data from Dayton Student Survey Rows: cigarette Columns: alcohol no 281 35.98 ves 500 no 64.02 For row conditional distribution 85.93 25.65 1449 96.92 74.35 Count For column conditional distribution 46 3.08 14.07 es Cell Contents: % of Row % of Column