When Your Multiple Regression Function Includes a Single Omitted Variable

question 16

Multiple Choice

When your multiple regression function includes a single omitted variable regressor, then

• A)use a two-sided alternative hypothesis to check the influence of all included variables.
• B)the estimator for your included regressors will be biased if at least one of the included variables is correlated with the omitted variable.
• C)the estimator for your included regressors will always be biased.
• D)lower the critical value to 1.645 from 1.96 in a two-sided alternative hypothesis to test the significance of the coefficients of the included variables.

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Definitions:

Epicardium

The outermost layer of the heart wall, composed of connective tissue and fat, providing lubrication for the heart.

Oxygen-rich Blood

Blood that has been oxygenated in the lungs and is carried to the body's tissues.

Pulmonary Circuit

The pathway by which blood travels from the heart to the lungs to be oxygenated and then back to the heart.

Systemic Circuit

The part of the cardiovascular system that carries oxygenated blood away from the heart to the body and returns deoxygenated blood back to the heart.