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Author Question: A multiple regression model has the form: y = 5.25 + 2.5x1 + 4x2 . As x2 increases by 1 unit, ... (Read 66 times)

LCritchfi

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on: Jun 24, 2018
A multiple regression model has the form: y = 5.25 + 2.5x1 + 4x2 . As x2 increases by 1 unit, holding x1 constant, then the value of y will increase by:
 a. 2.5 units.
  b. 7.75 units.
  c. 4 units on average.
  d. 11.75 units on average.

Question 2

A multiple regression model has the form y = b0 + b1x1 + b2x2 . The coefficient b1 is interpreted as the:
 a. estimated change in y per unit change in x1.
  b. estimated change in y per unit change in x1, holding x2constant.
  c. estimated change in y per unit change in x1, when x1 and x2 values are correlated.
  d. estimated change in y per unit change in x2, holding x1 constant.


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TheDev123

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

C

Answer to Question 2

B


LCritchfi

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Reply 2 on: Jun 24, 2018
Excellent

mcabuhat

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Reply 3 on: Yesterday
:D TYSM

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