The standard error of the estimate for a multiple regression ...

[dakota nelson]

The standard error of the estimate for a multiple regression model with two explanatory variables X1 and X2:
 
  A) measures the variation around the predicted regression equation.
  B) measures the proportion of variation in Y that is explained by X1 and X2.
  C) measures the proportion of variation in Y that is explained by X1 holding X2 constant.
  D) has the same sign as b1.

Question 2

A sample of 50 students is taken from Utah Valley University (UVU). These students spent an average of 175 on books this semester, with a standard deviation of 25.
 
  A 95 confidence interval for the average amount of money spent on books for all students at UVU is equal to ________. (Hint: Use Excel function to obtain the critical value.)A) 175  3.47
  B) 175  7.18
  C) 175  7.51
  D) 175  3.86

[zogaridan]

Answer to Question 1

A

Answer to Question 2

B

[dakota nelson]

Excellent

[samiel-sayed]

Great answer, keep it coming