
Spencer H. answered 07/03/21
Data Scientist with 2 years of experience
1. visualize the approve_estimate column over time
2. do the same for each subgroup at a time
3. observe what subgroups have caused the strongest changes in approval. a great way to do this is to t-tests to compare subgroups throughout these time periods (when the approval is very high or low.
here's a video about t-tests if you're not already familiar: https://www.youtube.com/watch?v=QZ7kgmhdIwA
I'd be happy to help if you're still working on this.