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This is a question pertaining to multivariate contingency analysis and partial correlation coefficient

A researcher is interested in determining the partial correlation between age (X) and attitude towards interracial marriage (X), controlling for place of residence (rural or urban) (W). The researcher finds the following correlations: r sub xy=.60; r sub xw=.43; r sub yw= .70, for N=175.

Set .05 as the significance level, what is the partial correlation coefficient and the t ratio? What do conclude as a result of calculations?

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