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, the null hypothesis that there is no linear relationship between revenue and the number of downloads should be rejected at a 5% level of significance.
Definitions:
Cardiovascular Capacity
The ability of the heart and lungs to supply oxygen-rich blood to the muscles during sustained physical activity.
Regular Exercise
Consistent physical activity performed to maintain or improve health and fitness.
Cardiovascular System
The body's system that consists of the heart, blood vessels, and blood, responsible for circulating blood and lymph throughout the body to supply nutrients and remove waste.
Down's Syndrome
A genetic disorder caused by the presence of all or part of a third copy of chromosome 21, characterized by developmental delays and physical features.
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