Estimation by WLS

question 44

Multiple Choice

Estimation by WLS

• A)although harder than OLS, will always produce a smaller variance.
• B)does not mean that you should use homoskedasticity-only standard errors on the transformed equation.
• C)requires quite a bit of knowledge about the conditional variance function.
• D)makes it very hard to interpret the coefficients, since the data is now weighted and not any longer in its original form.

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Definitions:

CKD

Chronic Kidney Disease, a long-term medical condition where the kidneys gradually lose their functionality over time.

Meaning

The significance, definition, or explanation of a word, phrase, or concept.

-tripsy

A suffix used in medical terms to denote the surgical crushing of a stone or calculus.

-ectomy

A suffix used in medical terminology to indicate the surgical removal of a specified part of the body.