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

question 134

True/False

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, there is sufficient evidence that revenue and the number of downloads are linearly related at a 5% level of significance.

Describe the mechanisms underlying synaptic inhibition and excitation.

Analyze the effects of drugs and toxins on synaptic function.

Distinguish between different synaptic arrangements and their functional outcomes.

Recognize the components and structures associated with neurons.

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Definitions:

Office of War Mobilization

A U.S. government agency during World War II that coordinated all government agencies involved in the war effort.

Franklin Roosevelt

The 32nd President of the United States, serving from 1933 until his death in 1945, known for leading the U.S. through the Great Depression and World War II.

Josef Stalin

The leader of the Soviet Union from the mid-1920s until his death in 1953, known for his totalitarian government and significant role in world events like World War II.

Allied Victory

The term often refers to the success of the Allies in World War II, resulting in the defeat of the Axis Powers in 1945.