In Exercise we saw that there were several potential high influence points. After a researcher set aside

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In Exercise we saw that there were several potential high influence points. After a researcher set aside those four countries, she refit the model in Exercise 33. A plot of residuals vs. predicted values showed:

a) What assumption and/or condition does the model violate?
A histogram of GDP per capita shows:

b) Why might this be problematic? What might you suggest to the researcher before proceeding?

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Business Statistics

ISBN: 9780321925831

3rd Edition

Authors: Norean Sharpe, Richard Veaux, Paul Velleman

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Question Posted: May 15, 2015 06:30 AM

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In Exercise we saw that there were several potential high influence points. After a researcher set aside

Question:

20000 10000 + . 00歩 -10000 -20000 10000 20000 30000 40000 Predicted 60 B 50 40 30 20 10 0 20000 40000 60000 80000 GDP per Capita

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a The equal spread condition is clearly violat...View the full answer

Business Statistics

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