Question 15 3.52941 out of 5.88235 points .77. . A multiple logistic regression was run predicting risk of lung cancer from age. gender, [j and smoking status (smoker vs. non-smoker). The regression indicated that the effect for smoking status (smoker vs non-smoker) was signicant and indicated a higher risk tree was downloaded by 100000824058268 from CourseHero.com on 04-17-2022 13:21:17 GMI' -05 :00 ours ehero.comfle/67748144/555-quizpdf/ of lung cancer for those who smoke, after controlling for age and gender. Which of the following are possible values for the beta estimate comparing smokers to non- smokers? Select all that apply. Selected Answers: 0 1.25 a 1.5 a 2.5 Answers: -2 -0.15 0 0.15 o 0.50 0 1.25 o 1.5 a 2.5 Question 16 5.88235 out of 5.88235 points ,4. A study was conducted to determine key predictors of chromosomal fetal ._a abnormalities. Using the multiple logistic regression model and a cut off selected by the investigator, 78 fetuses were predicted by the model of having an abnormality. However, only 14 of the 78 that were predicted to have the abnormality actually did. Of the 122 fetuses that the model predicted did not have the abnormality, 6 of them actually did. Construct a 2 by 2 table of these results to help you calculate the sensitivity of the model using this cutoff. Selected Answer: 0 70% Answers: 5% 18% 20% 30% 84% 0 70% 82% Question 17 5.88235 out of 5.88235 points {(7. . Researchers are developing a test to detect a viral disease in humans. They want to [j design the test so that it detects the disease in every individual that has it (they don't want to say that an individual is healthy when they actually have the disease). Which quantity should they aim to maximize? Selected Answer: 0 Sensitivity rce was downloaded by 100000824058268 from CourseHero.com on 04-17-2022 13:21:17 GMT -05 :00 nursehero.com/file/67748144/555-qui26pdf/ Answers: Specicity Precision 0 Sensitivity