SCENARIO 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: Regression Statistics Multiple R R Square Adjusted R Square Standard Error 0.8691 0.7554 0.7467 44.4765 30.0000 Observations ANOVA S Significance F 0.0000 df MS Regression Residual Total 171062.9193 171062.9193 86.4759 28 55388.4309 1978. 1582 29 226451.3503 Coefficients -95.0614 Standard Eror 26.9183 t Stat -3.5315 P-value 0.0015 Lower 95% -150.2009 Upper 95% -39.9218 Intercept Download 3.7297 0.4011 9.2992 0.0000 2.9082 4.5513 Dowrloed Residual Plot Normal Probability Plot
SCENARIO 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: Regression Statistics Multiple R R Square Adjusted R Square Standard Error 0.8691 0.7554 0.7467 44.4765 30.0000 Observations ANOVA S Significance F 0.0000 df MS Regression Residual Total 171062.9193 171062.9193 86.4759 28 55388.4309 1978. 1582 29 226451.3503 Coefficients -95.0614 Standard Eror 26.9183 t Stat -3.5315 P-value 0.0015 Lower 95% -150.2009 Upper 95% -39.9218 Intercept Download 3.7297 0.4011 9.2992 0.0000 2.9082 4.5513 Dowrloed Residual Plot Normal Probability Plot
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section: Chapter Questions
Problem 10T: Olympic Pole Vault The graph in Figure 7 indicates that in recent years the winning Olympic men’s...
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Referring to Scenario 13-11, what is the standard deviation around the regression line?
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