Understanding where they got the parameters from

by Killercamin   Last Updated November 17, 2017 17:19 PM

I was looking at this example: https://onlinecourses.science.psu.edu/stat500/node/59

and I got to the point where they use $\beta_0=-222$ My question is where did they get those parameters, since they state the $\beta_0$ is when $X=0$ but since it is not in the scope of the scatter plot then they just mention that "it is not much of interest," does that mean that we can pick another value for our constant term?

Related Questions

Linear Model vs Log-Linear vs Negative Binomial

Updated June 09, 2017 02:19 AM

Meaning of exp(B) in linear regression, SPSS GzLM

Updated October 23, 2016 09:08 AM