Question

# The estimated regression equation for a model involving two independent variables and 10 observations follows. Y=...

The estimated regression equation for a model involving two independent variables and 10 observations follows.

Y= 30.7752 + 0.6659x1+ 0.3724x2

a. Interpret b1 and b2 in this estimated regression equation.

b1= -------

-y changes by 0.6659 when x1 increases by 1 unit and x2 stays the same

-y changes by 0.6659 when x2 increases by 1 unit and x1 stays the same

- y changes by 0.3724 when x1 increases by 1 unit and x2 stays the same

-y changes by 0.3724 when x2 increases by 1 unit and x1 stays the same

B2= ---------

-y changes by 0.6659 when x1 increases by 1 unit and x2 stays the same

-y changes by 0.6659 when x2 increases by 1 unit and x1 stays the same

- y changes by 0.3724 when x1 increases by 1 unit and x2 stays the same

-y changes by 0.3724 when x2 increases by 1 unit and x1 stays the same

b. Estimate y when x1=180 and x2= 310 (to 3 decimals).

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