Where \(g_1\) and \(g_2\) are the two proportions and \(n_1\) and \(n_2\) are the sample sizes:
\[\begin{align} z=\frac{g_1-g_2}{\sqrt{\frac{g_1(1-g_1)}{n_1} + \frac{g_2(1-g_2)}{n_2}}} \end{align}\]
where \(p = 2(1-\Phi(|z|))\).
Where \(g_1\) and \(g_2\) are the two proportions and \(n_1\) and \(n_2\) are the sample sizes:
\[\begin{align} z=\frac{g_1-g_2}{\sqrt{\frac{g_1(1-g_1)}{n_1} + \frac{g_2(1-g_2)}{n_2}}} \end{align}\]
where \(p = 2(1-\Phi(|z|))\).