Each of the four scatterplots a d that follow shows a cluster of points and one stray

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Each of the four scatterplots a€“ d that follow shows a cluster of points and one €œstray€ point. For each, answer questions 1€“ 4:
1) In what way is the point unusual? Does it have high ­leverage, 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.
Each of the four scatterplots a– d that follow shows

b.

Each of the four scatterplots a€“ d that follow shows

c.

Each of the four scatterplots a€“ d that follow shows

d.

Each of the four scatterplots a€“ d that follow shows
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Business Statistics

ISBN: 9780321925831

3rd Edition

Authors: Norean Sharpe, Richard Veaux, Paul Velleman

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