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Unformatted text preview: and the other omits the influential observation. y 1 = 20.49 + 0.75x y 2 = 50.01 + 0.41x Sketch both lines on the scatterplot, and identify them as y 1 or y 2 . 3. Circle the equation of the line that omits the influential observation. 4. Explain how you knew the answer to problem #3. People who use artificial sweeteners tend to be heavier than people who use sugar. Does this mean that artificial sweeteners cause weight gain? 5. Give a more plausible explanation for this association. Chapter 4...
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This note was uploaded on 12/26/2009 for the course MATH 212 taught by Professor Mr.brown during the Spring '09 term at Louisiana College.
- Spring '09