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

question 75

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 critical 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:

Ethics Check

A process of evaluating decisions and actions based on moral principles to ensure they adhere to established ethical standards.

Economists

Professionals specialized in the study of how societies use resources to produce goods and services and distribute them among the population.

Data

Information collected for reference or analysis, often used to support decision-making processes.

Scientific Method

A systematic approach to research where a problem is identified, relevant data is gathered, a hypothesis is formulated, and then the hypothesis is empirically tested.