Statistics: Stratmann Edition

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

 
 
 
 

2. Which of the following are correct?

 
 
 
 
 
 
 
 

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

Capture

 
 
 

4. 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.

 
 
 
 
 
 
 

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

stata-example-2

 
 
 
 
 
 
 

6. 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

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

stata-example-output

 
 
 
 
 

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

stata-example-output

9. 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

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

stata-example-output

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

stata-example-output

 
 
 
 
 

12. What does the following statement do in STATA?

reg obamavote graduated

 
 
 
 

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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