Question: Refer to the previous exercise. Now we add x3 = percentage of single-parent families to the model. The SPSS table on the next page shows

Refer to the previous exercise. Now we add x3 = percentage of single-parent families to the model. The SPSS table on the next page shows results. Without x3 in the model, poverty has slope 28.33, and when x3 is added, poverty has slope 14.95. Explain the differences in the interpretations of these two slopes.

Violent crime predicted by poverty rate, urbanization, and single-parent family Coefficientsa Unstandardized Coefficients Model Sig. 1 (Constant)631.700 149.6044.222 000 1.983 053 4.528 000 3.513 .001 Std. Error poverty urbanization 14.953 4.406 7.540 .973 7.220 singleparent 25.362 a Dependent Variable: violent crime rate.

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