# Making predictions based upon regression equation

For the multiple regression equation y-hat = 100 + 20x1 - 3x2 + 120x3

a. identify the y-intercept partial regression coefficients

b. if x1 = 12, x2 = 5, and x3 = 10, what is the estimated value of y?

c. if x3 were to increase by 4, what change would be necessary in x2 in order for the estimated value of y to remain unchanged?

https://brainmass.com/statistics/regression-analysis/making-predictions-based-upon-regression-equation-211648

#### Solution Preview

Solution :

a. identify the y-intercept partial regression coefficients

Intercept = 100

Partial regression coefficient of x1 = 20

Partial regression coefficient of x2 ...

#### Solution Summary

The solution describes the steps to understand given regression equation and predicting behavior of its variables.

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