FA24 Midterm Exam: Data Analytics Coverage & Guidelines | Actual Questions
2025/2026 (Graded A+)
Midterm Exam due Oct 20, 2025 23 59 EDT Completed
The Midterm Exam covers the topics in Module 1 - 8 and is worth 20% of your overall grad
Please remember that you are to complete this exam on your own. Any help given or received
violations of the Georgia Tech Honor Code will be reported and penalized. If you have an
the exam, please post to the Piazza board marking it private.
Please only press SUBMIT for each question once you have your final answer. Only one attem
check piazza pinned posts for any clarifications/updates.
Good luck!
Georgia Tech Bank GT Bank) just hired you as a consultant, to help them bett
business. On your first day, you decide to use the “Credit” dataset from the ISL
proxy to answer questions about their customer base. Download the “Credit” da
package, drop the ID column, and model the data such that Balance is your de
the rest of the features Income, Limit, Rating, Cards, Age, Education, Gender,
Ethnicity) are your independent variables. Use your model to answer questions
Data Dictionary for the “Credit” Dataset:
1. Balance: This is the average credit card balance in dollars for each individua
2. Income: The annual income of the individual in thousands of dollars.
3. Credit Limit: The credit limit on the individualʼs credit card.
4. Credit Rating: The individualʼs credit rating.
5. Cards: The number of credit cards owned by the individual.
6. Age: The age of the individual.
7. Education: The highest level of education completed by the individual.
8. Gender: The gender of the individual (e.g., “Male” or “Female”).
, Income, Limit, Cards, StudentYes
Income, Age, Rating, Education
Submit You have used 1 of 1 attempt
Question 2
1.0/1.0 point (graded)
What is the absolute difference in coefficients between a customer of Asian eth
ethnicity?
Note: Round your answer to two decimal places.
26.9
16.8
10.11
6.7
Submit You have used 1 of 1 attempt
Question 3
1.0/1.0 point (graded)
Which statement about Rating is correct?
Rating is significant at a 0.01 level
For one unit increase in Rating, the average balance decreases by 1.1365
features are held constant
, Limit, Rating
Gender, Education
Age, Cards
Submit You have used 1 of 1 attempt
Question 5
1.0/1.0 point (graded)
How many influential points are included in the dataset with a Cook's Distance
0
1
3
4
Submit You have used 1 of 1 attempt
Question 6
1.0/1.0 point (graded)
Which statement correctly describes the residual vs. fitted plot for the model?
The residuals are randomly scattered around 0, suggesting that the mode
The residuals show a distinct 'V' pattern, suggesting that model has room
The residuals are as high as 300, suggesting that the model is suffering f
2025/2026 (Graded A+)
Midterm Exam due Oct 20, 2025 23 59 EDT Completed
The Midterm Exam covers the topics in Module 1 - 8 and is worth 20% of your overall grad
Please remember that you are to complete this exam on your own. Any help given or received
violations of the Georgia Tech Honor Code will be reported and penalized. If you have an
the exam, please post to the Piazza board marking it private.
Please only press SUBMIT for each question once you have your final answer. Only one attem
check piazza pinned posts for any clarifications/updates.
Good luck!
Georgia Tech Bank GT Bank) just hired you as a consultant, to help them bett
business. On your first day, you decide to use the “Credit” dataset from the ISL
proxy to answer questions about their customer base. Download the “Credit” da
package, drop the ID column, and model the data such that Balance is your de
the rest of the features Income, Limit, Rating, Cards, Age, Education, Gender,
Ethnicity) are your independent variables. Use your model to answer questions
Data Dictionary for the “Credit” Dataset:
1. Balance: This is the average credit card balance in dollars for each individua
2. Income: The annual income of the individual in thousands of dollars.
3. Credit Limit: The credit limit on the individualʼs credit card.
4. Credit Rating: The individualʼs credit rating.
5. Cards: The number of credit cards owned by the individual.
6. Age: The age of the individual.
7. Education: The highest level of education completed by the individual.
8. Gender: The gender of the individual (e.g., “Male” or “Female”).
, Income, Limit, Cards, StudentYes
Income, Age, Rating, Education
Submit You have used 1 of 1 attempt
Question 2
1.0/1.0 point (graded)
What is the absolute difference in coefficients between a customer of Asian eth
ethnicity?
Note: Round your answer to two decimal places.
26.9
16.8
10.11
6.7
Submit You have used 1 of 1 attempt
Question 3
1.0/1.0 point (graded)
Which statement about Rating is correct?
Rating is significant at a 0.01 level
For one unit increase in Rating, the average balance decreases by 1.1365
features are held constant
, Limit, Rating
Gender, Education
Age, Cards
Submit You have used 1 of 1 attempt
Question 5
1.0/1.0 point (graded)
How many influential points are included in the dataset with a Cook's Distance
0
1
3
4
Submit You have used 1 of 1 attempt
Question 6
1.0/1.0 point (graded)
Which statement correctly describes the residual vs. fitted plot for the model?
The residuals are randomly scattered around 0, suggesting that the mode
The residuals show a distinct 'V' pattern, suggesting that model has room
The residuals are as high as 300, suggesting that the model is suffering f
