How do I solve this question?
Im aware of B1 and B2 formulas after the OLS derivation, for example B1 = Y + Xbar B2
But there are no 'x-bar' values in the question. How do i fill them in?
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Last edited by statmajor; Jan 19th 2010 at 08:57 AM.
Be careful with your parenthesis statmajor
That's essentially the idea though, but you'll have to do some work on and the like to get something you can work with. In this case it simplifies to .
Originally Posted by theodds Be careful with your parenthesis statmajor What do you mean by that?
As written, the summation you have in the denominator is identically zero. If you move the parenthesis inside the summation then you are good to go. Although, looking it over again, the numerator needs to be fixed too. Should read
Thanks for the correction; I'll edit my earlier post.
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