A Researcher Calculates a Correlation of

question 50

Multiple Choice

A researcher calculates a correlation of .39 for a sample of 24 people. Assuming H_{1 is two-tailed, which of the following is the correct way to present this analysis?}

• A) r(24) = .39, p < .05
• B) r(23) = .39, p < .05
• C) r(22) = .39, p < .05
• D) r(22) = .39, p > .05

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Definitions:

Stroke Volume

The amount of blood ejected by the left ventricle of the heart in one contraction.

Lymphatic System

A subsystem of the cardiovascular system; returns excess interstitial fluid (lymph) to the circulation; defends the body against disease organisms.

Interstitial Fluid

The fluid that surrounds the cells in tissues and is exchanged with the blood, providing nutrients and removing waste materials.

Pacemaker

A device implanted in the chest to regulate the heartbeat.