A Simple Linear Regression Between Y (Weight in Pounds) and X

question 56

Multiple Choice

A simple linear regression between y (weight in pounds) and x (height in inches) results in the following least-squares line: y = 128 + 6x.This tells us that if the height is increased by 1 in, then.on average.the weight is predicted to:

• A) decrease by 1 lb.
• B) decrease by 6 lb.
• C) increase by 6 lb.
• D) increase by 128 lb.

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Definitions:

Logic

The study of principles of reasoning, especially the structure of propositions and the way in which conclusions follow from premises.

Experimental Method

A research methodology that tests hypotheses through controlled experimentation to establish cause-and-effect relationships.

Causes

Factors or events that bring about an effect or a change; reasons behind occurrences.

Thoughts

Mental cognitions, ranging from ideas and beliefs to memories and reasoning, that occur in the human mind.