TABLE 12-11A computer software developer would like to use the number of downloads (in thousands) for the trial version of his new shareware to predict the amountof 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 withthe residual plot and normal probability plot obtained from a data set of 30 different sharewares that he has developed:Regression StatisticsMultiple RR SquareAdjusted R SquareStandard ErrorObservations0.86910.75540.746744.476530.0000ANOVASignificance F0.0000dfSS171062.9193 171062.9193MSRegressionResidual86.47592855388.43091978. 1582Total29226451.3503Standard Error26.91830.4011P-valueInterceptDownloadCoefficients95.06143.7297t Stat3.53159.29920.00150.0000Lower 95%-150, 2009Upper 95%39.92182.90824.5513Download Residual Plot12010080604020-20-40-60-8010020.0060.0080.00100.00120.000.0040.00DownloadNormal Probability Plot120100604020-2040ResidualsResiduals -1000.0020.0040.0060.0080.00100.00120.00DownloadNormal Probability Plot12010080604020-2040-60-80-100-3-2-1Z ValueReferring to Table 12-11, which of the following assumptions appears to have been violated?Seleccione una:O A.independence of errorsOB.normality of errorhomoscedasticityOD.none of the aboveResiduals

From the above graph The error are not in straight line So here Normality assumption is Violated

0.00 20.00 40.00 60.00 80.00 100.00 120.00 Download Normal Probability Plot 120 100 60 40 -60 -80 -100 -1 Z Value Referring to Table 12-11, which of the following assumptions appears to have been violated? Seleccione una: O A. independence of errors OB. normality of error OC. homoscedasticity OD. none of the above

0.00 20.00 40.00 60.00 80.00 100.00 120.00 Download Normal Probability Plot 120 100 60 40 -60 -80 -100 -1 Z Value Referring to Table 12-11, which of the following assumptions appears to have been violated? Seleccione una: O A. independence of errors OB. normality of error OC. homoscedasticity OD. none of the above

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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