Difference in nicotine dependence between the proportion

Reference no: EM13952976

A longitudinal study of occupational status and smoking behavior among women reported at baseline that 170 per 1000 professional/managerial women were nicotine dependent. The corresponding rate among blue collar women was 310 per 1000. At the a = 0.05 level, determine whether there is a significant difference in nicotine dependence between the proportion of women who are classified as professional/managerial workers in comparison to those who are classified as blue collar workers. Then compute the approximate 99% confidence interval for the difference between these two proportions.

Reference no: EM13952976

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