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, which of the following is the correct null hypothesis for testing whether there is a linear relationship between revenue and the number of downloads?
Definitions:
Net Exports
The disparity between the total amount a country exports and the total amount it imports.
Interest Rate
The percentage charged on borrowed money, or paid to investors, indicating the cost or profit of borrowing or lending.
Net Capital Outflow
The difference between a nation's total investment in foreign assets and the total foreign investment in its domestic assets over a certain period.
Exchange Rate
The worth of one currency when converted into another, indicating the amount of one currency that can be swapped for another.
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