Because we have two samples when testing the significance of the difference between two percentages instead of the one that we worked with for a hypothesis test,the standard error term is calculated differently,called the standard error of the difference between two percentages.

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The standard error term is indeed calculated differently for two samples when testing the significance of the difference between two percentages, and it is called the standard error of the difference between two percentages.

Because We Have Two Samples When Testing the Significance of the Difference