If the Errors Are Heteroskedastic, Then

question 2

Multiple Choice

If the errors are heteroskedastic, then

• A)the OLS estimator is still BLUE as long as the regressors are nonrandom.
• B)the usual formula cannot be used for the OLS estimator.
• C)your model becomes overidentified.
• D)the OLS estimator is not BLUE.

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Definitions:

Chemical Reactions

Processes that involve the rearrangement of the molecules or ionic structure of substances, resulting in the formation of new products.

Organism

An individual living entity that can react to stimuli, reproduce, grow, and maintain homeostasis.

Fovea Centralis

A small depression in the retina of the eye where visual acuity is highest, responsible for sharp central vision.

Protein Synthesis

The process by which cells build proteins based on genetic instructions encoded in DNA, involving transcription and translation.