All of the following are basic precautions when using the results ...

[jerry coleman]

All of the following are basic precautions when using the results from regression analysis except .
  1.Using values of x close to the centroid could result in more variation for than further from the centroid.
  2.Do not use values of the independent too far outside the domain of the sample data.
  3.Correlation does not always imply causation.
  4.Do not use values of a sample from a different population than the regression line is modeling.

Question 2

Which of the following does not directly influence the value of the standard error of the regression slope, ?
  1.sample size
  2.dispersion of x values
  3.dispersion around the line
  4.y-intercept

[jordangronback]

Answer to Question 1

1

Answer to Question 2

4

[jerry coleman]

Wow, this really help

[samiel-sayed]

Excellent