(Solved): WPC 300 : Quiz 6: Logistic...

Quiz 6: Logistic

Started: Feb

Quiz Instructions

Question 1        1 pts

In classification analysis, we are determining the probability of an observation ________.

Group of answer choices

• To be undefined
• To be one
• To be part of a certain class or not
• To be zero

Question 2        1 pts

A loan officer wants to know if the next customer is likely to default or not on a loan. How can she assess the risk of extending the loan to that customer?

Group of answer choices

• By utilizing a simple linear regression model developed by an in-house analyst
• By asking his colleague if he knows the person
• By asking the customer if he is planning to default the loan or not
• By utilizing a multiple logistic regression model developed by an in-house analyst

Question 3       1 pts

In classification analysis, we typically split the data into two mutually exclusive sets, known as ________, to investigate the strength of the developed model.

Group of answer choices

• Training and Binary
• Training and validation/testing
• Binary and numeric
• Testing and validation

Question 4       1 pts

Odds ratio is defined as ________, where p is the probability of success.

Group of answer choices

• p/1-p
• 1/p-1
• p/p-1
• 1/1-p

Question 5         1 pts

The ________ is often used to describe the performance of a classification model applied to a set of test data for which the true outcomes are known.

Group of answer choices

• Effect summary table
• ANOVA table
• Parameter estimates table
• Confusion matrix

Question 6       1 pts

If you want to find out if body weight, calorie intake, fat intake and age have an influence on the probability of having a heart attack (yes or no), which of the following kind of analysis will help determine the answer?

Group of answer choices

• Multiple logistic regression
• Simple logistic regression
• Simple linear regression
• Multiple linear regression

Question 7          1 pts

In classification problems, the primary source for accuracy estimation of the model is ________.

Group of answer choices

• Probability of success
• Logit
• Confusion matrix
• Odds ratio

Question 8     1 pts

In logistic regression analysis, instead of Y as a dependent variable, we use a function of Y called ________.

Group of answer choices

• Logit
• Odds
• Odds ratio
• Log of Y

Question 9       1 pts

Logistic regression is a specialized type of regression analysis that is designed to predict ________ variables.

Group of answer choices

• independent
• numeric dependent
• a binary numeric
• a binary categorical

Question 10        1 pts

In logistic regression, the dependent variable y is defined as:

Group of answer choices

• Log (p/1-p)
• Log(1/p)
• Log (1/1-p)
• Log (1-p)