There is often thought to be a relationship between a person's educational attainment and the number of children he or she has. The hypothesis is that as one's educational level increases, he or she has fewer children. Investigate this conjecture with the following scatterplot and regression output produced from the 2010 GSS and interpret the results (see Figures 13.28 and 13.29).

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Figure 13.28 Scatterplot of Number of Children by Education 6 5 10 15 20 Highest year of school completed Figure 13.29 Linear Regression Output Specifying the Relationship Between Education and Number of Children Coefficients Standardized Unstandardized Coefficients Coefficients Std Error 8 Beta Sig Constant HIGHEST YEAR OF SCHOOL COMPLETED 4.060 155 191 014 21.220000 279 11.203 000 a Dependent Variable:NUMBER OF CHILDREN Model Summary Adjusted R Square Sld. Error of the Estimate R Square 279 078 077 1667 a Predictors (Constant), HIGHEST YEAR OF SCHOOL COMPLETED