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how to calculate z-test for two regression model coefficients (SD and mean)
how to calculate z-test for two regression model coefficients (SD and mean)

I have two models , both will get the R square and I would like to test the is the difference signicant or nop
I read about z test but it needs the mean and variance for R square
so how to get both mean and variance for each model regresion coff. and how to calc the z test?

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how to calculate z-test for two regression model coefficients (SD and mean)

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