TABLE 12-11 A Computer Software Developer Would Like to Use the Number

question 170

Short Answer

TABLE 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:



-Referring to Table 12-11, what is the p-value for testing whether there is a linear relationship between revenue and the number of downloads at a 5% level of significance?

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Definitions:

Nerve Cord

A bundle of nerve fibers running the length of an animal's body, which is the central component of its nervous system.

Phylogeny

Phylogeny is a visual representation of the evolutionary history of populations, genes, or species.

Homology

Homology refers to the similarity of characteristics resulting from shared ancestry.

Bat Wings

A term describing the wing structure of bats, which consists of a membrane stretched between elongated fingers.