Which of the Following Is True of Measurement Error

question 5

Multiple Choice

Which of the following is true of measurement error?

• A)If measurement error in a dependent variable has zero mean, the ordinary least squares estimators for the intercept are biased and inconsistent.
• B)If measurement error in an independent variable is uncorrelated with the variable, the ordinary least squares estimators are unbiased.
• C)If measurement error in an independent variable is uncorrelated with other independent variables, all estimators are biased.
• D)If measurement error in a dependent variable is correlated with the independent variables, the ordinary least squares estimators are unbiased.

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Definitions:

Open Circulatory System

A type of circulatory system where blood is not always contained within blood vessels but flows freely through cavities in the body, facilitating exchange of nutrients and waste with cells.

Blood Vessels

The tubes in the body through which blood flows, including arteries, veins, and capillaries, responsible for transporting oxygen, nutrients, and waste products.

Hemoglobin

This substance within red blood cells facilitates the movement of oxygen from the lungs to various body tissues and the return transport of carbon dioxide to the lungs.

Arthropods

Arthropods are invertebrate animals with an exoskeleton, a segmented body, and paired jointed appendages, including insects, arachnids, and crustaceans.