Refer to Exercise. Two MINITAB residual plots for the simple linear regression model are shown below. a.

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Refer to Exercise. Two MINITAB residual plots for the simple linear regression model are shown below.

a. Which graph should be used to check for normal errors? Does the assumption of normality appear to be satisfied?
b. Which graph should be used to check for unequal error variances? Does the assumption of equal variances appear to be satisfied?

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ISBN: 9780321755933

12th Edition

Authors: James T. McClave, Terry T Sincich

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Question Posted: May 20, 2015 07:52 AM

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Refer to Exercise. Two MINITAB residual plots for the simple linear regression model are shown below. a.

Question:

Normal Probability Plot of the Residuals (responce is WiPctile) 90 50 25 Residual Residuals Versus the Fitted Values (response is WePcbile 60 40 20 20 30 32 4 36 38 Fitted Value

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a The first graph would be used to check for normal ...View the full answer

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