Statistics: The Art and Science of Learning from Data (4th Edition)
4th Edition
ISBN: 9780321997838
Author: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 80CP
Fertility and GDP Refer to the Human Development data file on the book’s website. Use x = GDP and y = fertility (mean number of children per adult woman).
- a. Construct a
scatterplot and indicate whether regression seems appropriate. - b. Find the
correlation and the regression equation. - c. With x = percent using contraception, ŷ = 6.7 − 0.065x. Can you compare the slope of this regression equation with the slope of the equation with GDP as a predictor to determine which has the stronger association with y? Explain.
- d. Contraception has a correlation of −0.887 with fertility. Which variable has a stronger association with fertility: GDP or contraception?
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Multiple R
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Chapter 3 Solutions
Statistics: The Art and Science of Learning from Data (4th Edition)
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