The table below shows a partial computer output for a real estate data for 50 residences that we wish to determine how h

[answerhappygod]

The table below shows a partial computer output for a real
estate data for 50 residences that we wish to determine how house
size is influenced by family income, family size, and education of
the head of household. House size is measured in hundreds of square
feet, income is measured in thousands of dollars, and education is
measured in years.
SUMMARY OUTPUT
Regression Statistics
Multiple R
0.865
Adjusted R Square
0.726
Standard Error
5.195
Coeff.
St. Error
Intercept
-1.6335
5.8078
Family Income
0.4485
0.1137
Family Size
4.2615
0.8062
Education
-0.6517
0.4319
Find the lower end point in a 95% confidence interval for
the change in the mean house size in square foot, for a unit
change in family income, assuming that the other predictors remain
unchanged.