TABLE 13-11 A Computer Software Developer Would Like to Use the Number

question 124

Multiple Choice

TABLE 13-11
A computer software developer would like to use the number of downloads (in thousands) for the trial version of his new shareware to predict the amount of revenue (in thousands of dollars) he can make on the full version of the new shareware. Following is the output from a simple linear regression along with the residual plot and normal probability plot obtained from a data set of 30 different sharewares that he has developed:

-Referring to table 13-11, which of the following is the correct interpretation for the slope coefficient?

• A) For each increase of 1 download, the expected revenue is estimated to increase by $ 3.7297.
• B) For each increase of 1 thousand downloads, the expected revenue is estimated to increase by $ 3.7297 thousands.
• C) For each increase of 1 dollar in expected revenue, the expected number of downloads is estimated to increase by 3.7297.
• D) For each increase of 1 thousand dollars in expected revenue, the expected number of downloads is estimated to increase by 3.7297 thousands.

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Definitions:

Amygdala

Part of the limbic system, playing a key role in processing emotions and memory association.

Hypothalamus

A brain structure involved in emotions and drives vital to survival; it regulates the autonomic nervous system.

Generalized Anxiety Disorder

A psychological condition characterized by a state of excessive, uncontrollable, and often irrational worry about everyday things that is disproportionate to the actual source of worry.

DSM

The Diagnostic and Statistical Manual of Mental Disorders, a comprehensive classification of mental disorders published by the American Psychiatric Association.