Reconsider the “regression through the origin” situation presented in the previous exercise. Consider the following three estimators for the slope parameter β (one of which is the mle obtained in the previous exercise):

a. Show that all three of these estimators are unbiased for β.
b. Determine the variance of all three estimators, and comment on what you find.

Transcribed Image Text:

-ΣΒΗΣ ΣΥ; B₂ βι n Ni B3 ΣΧΥ Σ