Question: In problem 15.1, data regarding voter turnout in five cities was presented. For the sake of convenience, the data for three of the variables are

In problem 15.1, data regarding voter turnout in five cities was presented. For the sake of convenience, the data for three of the variables are presented again here along with descriptive statistics and zero-order correlations.

Unemployment % Negative City Turnout Rate Ads A 55 5 60 B 60 8 63 C 65 9 55 D 68 9 53 E 70 10 48 Mean  63.6 8.2 55.8 s 5.5 1.7 5.3 Unemployment Negative Rate Ads Turnout 0.95 0.87 Unemployment Rate 0.70

a. Compute the partial correlation coefficient for the relationship between turnout (Y ) and unemployment (X ) while controlling for the effect of negative advertising (Z ). What effect does this control variable have on the bivariate relationship? Is the relationship between turnout and unemployment direct? (HINT: Use Formula

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