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Basic Question 0 of 8
If linear regression is used to model the relationship between two time series, and a test shows that one of the two time series has a unit root, we should:
B. safely use linear regression if the time series are co-integrated.
C. not use linear regression if the time series are not co-integrated.
A. not use linear regression.
B. safely use linear regression if the time series are co-integrated.
C. not use linear regression if the time series are not co-integrated.
User Contributed Comments 1
| User | Comment |
|---|---|
| wtwaf | key words: one of the two good question! |
I just wanted to share the good news that I passed CFA Level I!!! Thank you for your help - I think the online question bank helped cut the clutter and made a positive difference.
Edward Liu
Learning Outcome Statements
explain how time-series variables should be analyzed for nonstationarity and/or cointegration before use in a linear regression;
determine an appropriate time-series model to analyze a given investment problem and justify that choice.
CFA® 2025 Level II Curriculum, Volume 1, Module 5.