Statistics: Stratmann Edition

1. For an OLS regression, how do we calculate Root MSE?

 
 
 
 

2. Given the example STATA output below, which of the following are true? Click image to enlarge.

stata-example-output

 
 
 
 
 

3. Given the example STATA output below, what is C? Round to the nearest tenth. Click image to enlarge.

stata-example-output

4. Suppose we define the correlation between X and Y as rho, given below. Which coefficient of correlation have we measured?

Capture

 
 
 

5. What does the following statement do in STATA?

reg obamavote graduated

 
 
 
 

6. Which of the following are correct?

 
 
 
 
 
 
 
 

7. What is the correlation between obama and income below? Round answer to 3 decimal places. Click image to enlarge.

Suppose that the standard deviation of income is 7956.042

User Pearson’s correlation coefficient, as if you ran the command corr obama income

stata-example-2

8. Given the regression below, which statements are true?

stata-example-2

 
 
 
 
 
 
 

9. Consider the following statement and select all appropriate answers:

SSE = SSR. That is, the Sum of the Squared Errors is equal to the Sum of the Squared Residuals.

 
 
 
 
 
 
 

10. Given the example STATA output below, what is D? Click to enlarge.

stata-example-output

 
 
 
 
 

11. About what percent of the dependent variable is unexplained by the below described model? Round to the nearest percent. Click image to enlarge.

stata-example-2

12. Given the example STATA output below, what is K? Round to the nearest thousandth. Click image to enlarge.

stata-example-output

13. Given the example STATA output below, enter the value of R^2 to 6 decimal places. Click to enlarge.

stata-example-output


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