SCENARIO 12-11
a Computer Software Developer Would Like to Use

question 15

Short Answer

SCENARIO 12-11
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:
$\begin{array}{lr}{\text { Regression Statistics }} \\\hline \text { Multiple R } & 0.8691 \\\hline \text { R Square } & 0.7554 \\\hline \text { Adjusted R Square } & 0.7467 \\\hline \text { Standard Error } & 44.4765 \\\hline \text { Observations } & 30.0000 \\\hline\end{array}$

$\text { ANOVA }$
$\begin{array}{|l|r|r|r|r|r|}\hline &\text { df } & \text { SS } & \text { MS } & F & \text { Significance } F \\ \hline \text { Regression } & 1 & 171062.9193 & 171062.9193 & 86.4759 & 0.0000 \\\hline \text { Residual } & 28 & 55388.4309 & 1978.1582 & & \\\hline \text { Total } & 29 & 226451.3503 & & \\\hline\end{array}$





Simple Linear Regression 12-41
-Referring to Scenario 12-11, predict the revenue when the number of downloads is 30 thousand.

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Definitions:

Women's "Sphere"

A nineteenth-century ideological belief that women's roles were confined to domestic responsibilities and moral guardianship of the home.

Uncle Tom's Cabin

is a novel by Harriet Beecher Stowe published in 1852, which depicted the harsh realities of slavery in the United States and galvanized anti-slavery sentiments.

Free Opinion

The right to hold and express one's thoughts and viewpoints without fear of censorship or retaliation.

William Lloyd Garrison

A prominent American abolitionist, journalist, suffragist, and social reformer best known for his publication "The Liberator" and for his strong stance against slavery.