Fertility and GDP Refer to the Human Development data file on the text CD. 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, yn = 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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