In: Statistics and Probability
The following is the estimation results for a multiple linear regression model:
SUMMARY OUTPUT
Regression Statistics
R-Square 0.558
Regression Standard Error (S) 863.100
Observations 35
Coeff StdError t-Stat
Intercept 1283.000 352.000 3.65
X1 25.228 8.631
X2 0.861 0.372
Questions:
solution:
given data:
Interpret each coefficient:-
is the
intercept coefficient and thus is the value of the dependent
variable Y, when both the independent variables are equal to
zero.
The estimate of is 1283 and
thus is the approximate value of Y when both X1 and
X2 are zero.
is the slope
coefficient of the independent variable X1 and thus
represents the approximate change in the value of Y when
X1 is increased by 1 unit keeping X2
unchanged.
The estimate of is 25.228 and
thus is the approximate increase in the value of Y when
X1 is increased by 1 unit when X2 is
unchanged.
is the slope
coefficient of the independent variable X2 and thus
represents the approximate change in the value of Y when
X2 is increased by 1 unit keeping X1
unchanged.
The estimate of is 0.861 and
thus is the approximate increase in the value of Y when
X2 is increased by 1 unit when X1 is
unchanged.
please give e thumb up