Answer the following statement(s) true (T) or false (F)

1. Similar to a t-score, the degrees of freedom for regression is equal to one minus a given sample size.
2. The independent variable in a time-series regression is time.
3. If OLS is BLUE for a relationship, there may be collinearity.
4. A scatter plot can be used to help determine if a line is linear.
5. When using regression, the errors should be homoscedastic.


1. false
2. true
3. false
4. true
5. true

Political Science

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