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...

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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 choicesTrueFalseFlag question: Question 3Question 30.5ptsIn Case Study #3 logistic regression, the model is significant (chi-square probability Group of answer choicesTrueFalseFlag 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_paintrestbpscholfbsrestecgthalachexangoldpeakslopecathalFlag question: Question 6Question 61ptsBased on Case Study #3, check all variables showing an odds ratio significantly different from 1:Group of answer choicesagesexchest_paintrestbpscholfbsrestecgthalachexangoldpeakslopecathalFlag question: Question 7Question 70.5ptsBased on Case Study #3, check the variable showing the largest significant odds ratio:Group of answer choicesagesexchest_paintrestbpscholfbsrestecgthalachexangoldpeakslopecathalFlag 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
Answered Same DayOct 05, 2021

Answer To: Question 11ptsThe main goal of regression or logistic regression is to:Group of answer...

Suraj answered on Oct 06 2021
152 Votes
. Question 1
The main goal of regression or logistic regression is to:
Group of answer choices
Summarize a group of var
iables.
Predict a variable from a set of predictor variables.
Make an inference based on the comparison between groups.
Answer: The main aim of regression or logistic regression is to make predictions using the predictor variables. Thus, the correct option is 2nd option “Predict a variable from a set of predictor variables”.
 
Flag question: Question 2
Question 2
Logistic regression is used to predict:
Group of answer choices
True
False
Answer: The logistic regression is an algorithm used for make classification of the categorical variables. Thus, the main task of logistic regression is to classify dependent variable not to predict it. Hence, the given statement is false. The correct option is 2nd option “False”.
 
Flag question: Question 3
Question 3
In Case Study #3 logistic regression, the model is significant (chi-square probability < 0.05):
Group of answer choices
True
False
 Answer: Here, the chi-square probability value of the model is 0. For significance we always reject the null hypothesis if probability value is less than 0.05. Here, the probability value <...
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