Each of the following scatterplots a d shows a cluster of points and one stray point. For
Question:
1) In what way is the point unusual? Does it have high le-verage, a large residual, or both?
2) Do you think that point is an influential point?
3) If that point were removed from the data, would the correlation become stronger or weaker? Explain.
4) If that point were removed from the data, would the slope of the regression line increase, decrease, or remain the same? Explain.
a.
b.
c.
d.
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Related Book For
Business Statistics
ISBN: 9780321925831
3rd Edition
Authors: Norean Sharpe, Richard Veaux, Paul Velleman
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