Which of the Following Statements Is True

question 1

Multiple Choice

Which of the following statements is true?

• A)The standard error of a regression, , is not an unbiased estimator for , the standard deviation of the error, u, in a multiple regression model.
• B)In time series regressions, OLS estimators are always unbiased.
• C)Almost all economists agree that unbiasedness is a minimal requirement for an estimator in regression analysis.
• D)All estimators in a regression model that are consistent are also unbiased.

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Definitions:

Chromium

A lustrous, hard, and brittle metallic element that is used primarily in metal alloys and as a compound in industrial processes.

Carbon

A chemical element with the symbol C and atomic number 6, essential for all life, known for its ability to form a vast number of compounds.

Hydrogen

The lightest and most abundant chemical element in the universe, consisting of a single proton with one electron, often used in fuel cells and various industrial processes.

Mercury

A chemical element with the symbol Hg and atomic number 80, known as quicksilver; a heavy, silvery d-block element that is liquid at room temperature.