Ellen Hertz wrote:
>
> Mike,
> Yes, you are correct. A purist might say that you didn't actually prove
> that the slopes are the same, only that you failed to demonstrate a
> significant difference between them (because non-significant parameters can
> become significant with more data). However
on is correct
and, also, including an interaction term to examine its statistical
significance is the best approach.
Ellen Hertz
"Mike Tonkovich" <[EMAIL PROTECTED]> wrote in message
news:3b20f210_1@newsfeeds...
> Was hoping someone might be able to confirm that my approach for comparin
