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Author Question: The standard error of the estimate for a multiple regression model with two explanatory variables X1 ... (Read 73 times)

dakota nelson

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on: Jun 24, 2018
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


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zogaridan

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Reply #1 on: Jun 24, 2018
Answer to Question 1

A

Answer to Question 2

B


dakota nelson

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Reply 2 on: Jun 24, 2018
Gracias!

frankwu0507

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Reply 3 on: Yesterday
Wow, this really help

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