Following is a simple linear regression model:

y_i=0+ 1x_i +_i

The following results were obtained from statistical software:

s_yx (regression standard error) = 5.028

SST = 2,018.73

n (total observations) = 30

Variable	Parameter Estimate	Std. Err. of Parameter Est.
Constant	-0.0073	0.0033
X	-0.0023	0.0010

The estimated value of the intercept is: