Question 11ptsThe main goal of regression or logistic regression is to:Group of answer choicesSummarize a group of variables.Predict a variable from a set of predictor variables.Make an inference based on the comparison between groups.
Flag question: Question 2Question 20.5ptsLogistic regression is used to predict:Group of answer choicesTrueFalse
Flag question: Question 3Question 30.5ptsIn Case Study #3 logistic regression, the model is significant (chi-square probability Group of answer choicesTrueFalse
Flag question: Question 4Question 41ptsIn the Case Study #3 assignment, the goodness-of-fit evaluation can be summarized by the following (check all that are true):Group of answer choicesThe logistic regression model is a good fit for the data.88.4% of the variability on the data cannot be explained by this model,which is not good.Theeffect size can be measured by theR2statistic.The R2statistic indicatesthat 88.4%of the variability in the data can be explained by this model,which is a good result.
Flag question: Question 5Question 51ptsBased on Case Study #3, check all variables showing a significant predictive power on heart disease:Group of answer choicesagesexchest_paintrestbpscholfbsrestecgthalachexangoldpeakslopecathal
Flag question: Question 6Question 61ptsBased on Case Study #3, check all variables showing an odds ratio significantly different from 1:Group of answer choicesagesexchest_paintrestbpscholfbsrestecgthalachexangoldpeakslopecathal
Flag question: Question 7Question 70.5ptsBased on Case Study #3, check the variable showing the largest significant odds ratio:Group of answer choicesagesexchest_paintrestbpscholfbsrestecgthalachexangoldpeakslopecathal
Flag question: Question 8Question 80.5ptsBased on Case Study #3, check the variable showing the largest significant coefficient (in absolute value):Group of answer choicesagesexchest_paintrestbpscholfbsrestecgthalachexangoldpeakslopecathal