A Linear Model Is Fit to Estimate the Diameter of Maple

question 45

Multiple Choice

A linear model is fit to estimate the diameter of maple trees based on age. According to the scatterplot and residual plots shown below, which of the following is true?

• A) Assuming the pattern continues into the future, if we use this model to predict the Diameter of a maple tree that is 50 years old it would be too low.
• B) Assuming the pattern continues into the future, if we use this model to predict the Diameter of a maple tree that is 50 years old it would be too high.
• C) Re-expressing these data by taking the logarithm of age would improve this Model.
• D) Both A and B.
• E) Both B and C.

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Definitions:

Mowrer

A psychologist known for his two-factor theory of avoidance learning, which combines classical and operant conditioning theories to explain how anxiety and phobias are learned and maintained.

First Stage Avoidance

First stage avoidance in classical conditioning is where the organism learns to avoid an aversive stimulus by responding appropriately to a warning signal.

Fear

Conditioned response to stimuli associated with painful events; motivates avoidance of aversive events.

Pain

An unpleasant sensory and emotional experience associated with actual or potential tissue damage.