Quiz: Quiz 4

= Quiz: Quiz 4 Question40f1i ThlS qujz: 20 point(s) possible This question: 3 point(S) possible @ Submnqt& Could it be that smoking actually increases survival rates among wornen? Tho accompanying data represent ffe 20-year survival status and smoking status of 1337 wornen who participated in a 20-year cohort (prospective) study. Complete parts (a) tygough (c). Click the icon to view tho data table. (a) What proportion Of the were dead after 20 years? What proportion of the nonsmokers wero dead after 20 years? What does this irTWy about tho health consequences of srnoking7 The proporlbn of the who were dead after 20 years is a. (Rwnd to three decimal places as The proportin of the nonsrnokers who Were dead aner 20 years is 0. &.lnd to three decimal places as needed.) (b) The data in the first table do not take into account a variabe that is strongly related to survival status, age, The data shown in tie second accompanying table give tie survival status of women and their age at the beginning of the study Determine the proportion of 18- to 24-year-old smokers who were dead after 20 years. The proportkn of 18- to 24-year-oid smokers who were dead after 20 years is D. (Round to three decimal places as reeded.) Determine the proportion of 18- to 24-year-o\d nonsmokers who were dead after 20 years. The prcpoGn of to 24-year-od rxnsmokers who were dead after 20 years is a. (Round to three decmai places as reeded.) (c) Sate the appropriate conclusion. Choose the correct answer below. In almost au age groups. smokers had a higher death rate man In almost ali age grcups, smokers had a death rate than rx)nsmokers. @ Time Remaining: 004629 Next