Possible mistake in paired_ttest_resampled doc

[Hardwarize]

Describe the documentation issue

I think that there is an error in the T-value formula in the Resampled paired t test doc page.

It seems that, in the denominator, p is raised to (i) - p

Suggest a potential improvement or addition

I think that this: $$t = \frac{\overline{p} \sqrt{k}}{\sqrt{\sum_{i=1}^{k}(p^{(i) - \overline{p}})^2 / (k-1)}}.$$

should be replace by this: $$t = \frac{\overline{p} \sqrt{k}}{\sqrt{\sum_{i=1}^{k}(p^{(i)} - \overline{p})^2 / (k-1)}}.$$

Thanks for this amazing library!

[rasbt]

Thanks a lot for the note! You are right, that was a formatting issue. Just fixed it via #976