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I made this normal probability plot from residuals. Would this graph show the data is not normal? I made this residual plot in minitab. How do I

hw3prob3.PNG


I made this normal probability plot from residuals. Would this graph show the data is not normal?


hw3prob2.PNG

I made this residual plot in minitab. How do I describe the heteroscedacity of the data?

hw3prob1a.PNG

I created this regression model on minitab. How do I tell if it is significant, good and the percentage of variability that is explained by the graph?

hw3prob1a.PNG

hw3prob2.PNG

hw3prob3.PNG

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Linear Homo... View the full answer

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  • Okay thank you! I am still a bit confused on certain areas. So the first graph (the one with the S pattern) shows normality? And for the second graph, my prof. said that that homoscedacity residual graphs have no clear pattern. This graph looks like it has a pattern of getting bigger to smaller (like butterfly wings).
    • JenkinsM123
    • Apr 02, 2019 at 11:41am

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