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

question 148

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 are the lower and upper limits of the 95% confidence interval estimate for population slope?

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Definitions:

Income Elasticity

A measure of how much the quantity demanded of a good or service changes in response to a change in income, indicating how sensitive demand for the good is to income changes.

Normal Good

A type of good for which demand increases as the income of consumers increases.

Public Good

Every member of a society has access to certain goods or services without having to pay, thanks to provision by governmental agencies or private organizations or individuals, all without the motivation for profit.

Asymmetric Information

A situation where one party in a transaction has more or better information than the other, potentially leading to an imbalance in decision-making or outcomes.