TABLE 13-11 A Computer Software Developer Would Like to Use the Number

question 2

Short Answer

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, what are, respectively, the lower and upper limits of the 95% confidence interval estimate for the average change in revenue as a result of a one thousand increase in the number of downloads?

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