Regression Lecture 4 And 5 Quiz University of Illinois, Chicago IDS 371

Question 1 10 out of 10 points
True or False: Multicollinearity is a situation where you have NO
interference among the explanatory variables for regression

Selected Answer: False


Answers: True

False




Question 2 10 out of 10 points
If you have variables that are multicollinear in your regression model
they are more likely to be statistically significant

Selected Answer: False


Answers: True

False




Question 3 10 out of 10 points
If you have multicollinearity then the global F­test will be less likely
to be statistically significant compared to the tests for the individual
variables

Selected Answer: False

Answers: True

False




Question 4 10 out of 10 points
Multicollinearity will never result in slopes for the regression that are
not sensible

Selected Answer: False

Answers: True
False




Question 5 10 out of 10 points
The correlation output from SPSS contains no redundant data
This study source was downloaded by 100000850872992 from CourseHero.com on 02-19-2023 22:17:34 GMT -06:00


https://www.coursehero.com/file/20849725/Regression-Lecture-4-And-5-Quiz/

, Selected Answer: False

Answers: True
False




Question 6 10 out of 10 points
The slope for Bedrooms on slide 6 agrees with common sense in the selling
price of homes

Selected Answer: False

Answers: Ture
False




Question 7 0 out of 10 points
Using the facts on slide 6, we would fail reject Ho for the variables
Bedrooms and Garage

Selected Answer: False

Answers: True

False




Question 8 10 out of 10 points
In multiple regression one never includes the phrase "in the presence of
the other variables in the model" in the interpretation of the slope
coefficients

Selected Answer: False

Answers: True
False




Question 9 10 out of 10 points
If multicollinearity exists in the data then you may have to trade­off
between predictability and explain­ability

Selected Answer: True

Answers: True

False




Question 10 10 out of 10 points
As the number of potential explanatory variables increases, the number of
potential models increases very rapidly
This study source was downloaded by 100000850872992 from CourseHero.com on 02-19-2023 22:17:34 GMT -06:00


https://www.coursehero.com/file/20849725/Regression-Lecture-4-And-5-Quiz/