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Problem set 4: use the following information to answer questions 13-14 (10 points total) The following data on fertility rates were obtained from Eurostat on seven European countries in 2008. The covariance between the mean age at childbearing and the total fertility rate is -0.03 GUN And the Variance ('x).20.22 Country Denmark Mean Age at Childbearing Total Fertility Rate Ireland 30.29 1 85 Gireece 30,60 2.02 Spain 29.87 1.44 30.88 1.32 France 1.75 Italy 29.72 Netherlands 30.87 1.51 Mean 30.58 1.66 Source: International Social Survey Program, 2008. 30.41 (X bar) 1.65 (Y bar) 13. Using this information and the information provided in the table above, calculate the Y- intercept (a) and the slope (b) and write down the linear regression equation which summarizes the relationship between these two variables (8 pts). 14 The coefficient of determination, r2 is a PRE measure. What does this mean? (2 pts). 5