[Step-by-Step] For the multiple regression equation y bar = 100 + 20 x 1 - 3 x 2 + 120 x 3: Identify the y -intercept and partial regression coefficients.

Question: For the multiple regression equation y bar = 100 + 20 x 1 – 3 x 2 + 120 x 3:

Identify the y -intercept and partial regression coefficients.
If x 1 = 12, x 2 = 5, and x 3 = 10, what is the estimated value of y ?
If x 3 were to increase by 4, what change would be necessary in x 2 in order for the estimated value of y to remain unchanged?

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[Step-by-Step] For the multiple regression equation y bar = 100 + 20 x 1 - 3 x 2 + 120 x 3: Identify the y -intercept and partial regression coefficients.

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