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Next, responses to the following question were analyzed: "How much interest would you have in participating in a stop-smoking program that was designed for people your own age?" Response categories were great deal of interest, some interest, little interest, and no interest at all.
A comparison of the response rates of
Marlboro and Newport smokers yielded a chi-square statistic of 5.019 with a p value of .170. Thus, at a 5% significance level, the two groups did not differ. With responses coded 1 for great interest, 2 for some interest, 3 for little interest, and 4 for no interest, the mean score for Marlboro smokers was 2.81, while the mean score for Newport smokers was 2.70. This indicates that, on average, Marlboro smokers were slightly (but not significantly) less interested in a peer stop-smoking program.