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:

Same Individuals

Referring to using the same group of subjects or samples in different conditions or periods of a study or experiment.

Matched Pairs

A study design in which subjects are paired based on certain characteristics, with one subject from each pair receiving each treatment.

Parameter

A numerical characteristic or measure of a population, such as its mean or variance, which is often estimated using sample data.

Population

The entire aggregation of items or individuals from which samples can be drawn for statistical analysis.