Suppose the Ordinary Least-Squares Approach to a Regression Analysis Produced

question 73

Multiple Choice

Suppose the ordinary least-squares approach to a regression analysis produced the following Y = 20 - 39X R² = .90
Which of the following statements is FALSE?

• A) For every unit change in X there is a corresponding negative change in the average value of Y of 39 units.
• B) 90 percent of the variation in Y is associated with variation in X.
• C) The slope of the line is 20.
• D) The average value of Y given x = 10 is 370.
• E) If X = 0, then Y = 20.

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Definitions:

Effort Made

The amount of physical or mental energy expended towards accomplishing a task or goal.

Primary Reinforcers

Stimuli that satisfy basic survival needs and thus have intrinsic value, such as food, water, and warmth.

Biological Needs

Fundamental requirements that organisms must satisfy to maintain life, such as food, water, and shelter.

Learned Desire

A preference or craving developed through experience or conditioning rather than inherent or instinctual.