The following data were obtained in a study in which 1000 nurses were followed for 20...
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The following data were obtained in a study in which 1000 nurses were followed for 20 years to examine the hypothesis that use of a certain diet pill is a risk factor for heart attack. Diet Pill Use Heart Attack Yes No Total Yes 30 11 41 No 959 470 500 489 Total 500 1000 а. Estimate the number of woman-years contributed by the unexposed group. What information would you need in order to obtain a better estimate of the number of women-years? b. С. What is the 20-year risk of heart attack among those who used diet pills? d. What is the prevalence of diet pill use among those who did not have a heart attack? е. Do the data suggest that diet pill use is a risk factor for heart attack? Explain. The following data were obtained in a study in which 1000 nurses were followed for 20 years to examine the hypothesis that use of a certain diet pill is a risk factor for heart attack. Diet Pill Use Heart Attack Yes No Total Yes 30 11 41 No 959 470 500 489 Total 500 1000 а. Estimate the number of woman-years contributed by the unexposed group. What information would you need in order to obtain a better estimate of the number of women-years? b. С. What is the 20-year risk of heart attack among those who used diet pills? d. What is the prevalence of diet pill use among those who did not have a heart attack? е. Do the data suggest that diet pill use is a risk factor for heart attack? Explain.
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Sol e Though the data is not very conclusive but 6 of ... View the full answer
Related Book For
Probability & Statistics for Engineers & Scientists
ISBN: 978-0130415295
7th Edition
Authors: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying
Posted Date:
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