Say I have 2 separate predictor variables x and y.(adsbygoogle = window.adsbygoogle || []).push({});

And the response variable is z. The correlation between x and z is a; the correlation between y and z is b.

How to get the p-value for a = b? By using SAS or SPSS.

I believe we should use t-test. Because the correlation analysis for only 1 correlation is significant or not is compared to 0 by t-test.

I kind have some ideas to work this out on paper, but it is complicated to perform and consider normality, variances, and degree of freedom. I'm looking for a software package to do this simply.

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# Test on correlation?

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