Complex Samples Z-Test of a Proportion

Where $g$ is the observed proportion, $e$ is the expected proportion, $s_p$ is the estimated Standard Error of the observed proportion and $n$ is the sample size,

$n$ is the sample size:

$z = \frac{g - e}{s_p}$

where $p = 2(1-\Phi(|z|))$ if $g \ne e$ and NaN otherwise.