Could it be that smoking actually increases survival rates among women? The acco

Question

Could it be that smoking actually increases survival rates among women? The accompanying data represent the 20-year survival status and smoking status of 1335 women who participated in a 20-year cohort study Complete parts (a) through (e) EER Click the icon to view the data table. (a) What proportion of the smokers were dead after 20 years? What proportion of the nonsmokers were dead after 20 years? What does this impyabout the health consequences of smoking? The proportion of the smokers who were dead after 20 years is (Round to three decimal places as needed) The proportion of the nonsmokers who were dead aner 20yearsis[ (Round to three decimal places as needed) What does this imply about the health consequences of smoking? O This implies that it is healthier not to smoke

Explanation / Answer

(a)

(i)The proportion of smokers who were died after 20 years is 143/(143+452)= 0.2403361

(ii) The proportion of non-smokers who were died after 20 years is 235/(235+505)=0.3175676

(iii) This implies that it is healthier not to smoke.

(b)

(i) The proportion of 18 to 24 years old smokers who were died after 20 years is 3/(3+54)=0.05263158

(ii) The proportion of 18 to 24 years old non-smokers who were died after 20 years is 2/(2+63)=0.03076923

(c)

(d) Answer of this question is option A.

(e) Answer of this question is option D.

18-24 25-34 35-44 45-54 55-64 65-74 75 or older Smoker 0.05263158 0.02362205 0.1441441 0.2030075 0.4358974 0.8108108 1 Nonsmoker 0.03076923 0.03184713 0.06557377 0.164557 0.3305785 0.7769231 1

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