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October 16th, 2012, 03:33 PM   #1
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OLS URGENT HELP ME

i'm having trouble demonstrate the b) question, if u please help me would be really apreciated:

(this exercise is on the upload photo too)

[attachment=2:b6jvchin]cap1.PNG[/attachment:b6jvchin]

1. Consider the model
Yi = Xi + ui; i = 1; :::;N
where ui satis?es the usual hypotheses.
(a) Derive by OLS the estimator of the parameter :
(b) Show that the estimador obtained in (a) is unbiased. (Hint: Compute the
expected value of the estimator.)

my resolution is on the anex file, also please tell me the right way to do it the b) correctly.

thanks and sorry for my english.

[attachment=1:b6jvchin]my-resolution.pdf[/attachment:b6jvchin]

[attachment=0:b6jvchin]my-resolution.docx[/attachment:b6jvchin]

[attachment=0:b6jvchin]my-resolution.docx[/attachment:b6jvchin]
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File Type: pdf my-resolution.pdf (151.2 KB, 5 views)
File Type: docx my-resolution.docx (40.6 KB, 2 views)
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