The T Test for the Difference Between the Means of 2

question 179

Multiple Choice

The t test for the difference between the means of 2 independent populations assumes that the respective

• A)sample sizes are equal.
• B)sample variances are equal.
• C)populations are approximately normal.
• D)All the above.

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Definitions:

Circulatory System

The body system consisting of the heart, blood vessels, and blood, responsible for transporting nutrients, oxygen, and wastes among cells and the external environment.

Connective Tissue

Tissue that supports, binds together, and protects tissues and organs of the body, characterized by few cells and a large amount of extracellular matrix.

Lymph

The colorless fluid within the lymphatic vessels that is derived from blood plasma; contains white blood cells; ultimately lymph is returned to the blood.

Erythrocytes

Red blood cells that transport oxygen and carbon dioxide between the lungs and tissues of the body.