Values needed to get the z_score
Sample proportion, hypothesized proportion,
sample size.
Standard error formula
sqrt(hyp_prop*(1 - hyp_prop) / sample_size)
Is it possible to avoid bootstrap?
Yes. Standard error can be calculated directly.
Two-sample proportion tests show if…
There is a significant difference between groups inside others.
Two-sample proportion test use…
The sizes of each group.