fix dcorr sqrt bug

[sampan501]

Reference issue

Closes #384

Type of change

Bug

What does this implement/fix?

Takes square root of Dcorr test statistic and fixes fast Dcorr so statistic is calculated as before.

Additional information

[netlify[bot]]

✅ Deploy Preview for hyppo ready!

Name	Link
🔨 Latest commit	fa377e5ab77bf5fc326a89d4e3ca3491e3348847
🔍 Latest deploy log	https://app.netlify.com/sites/hyppo/deploys/6491c71fd38fdf00082b5f08
😎 Deploy Preview	https://deploy-preview-385--hyppo.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site settings.

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (50f9c68) 96.70% compared to head (fa377e5) 96.71%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #385 +/- ## ======================================= Coverage 96.70% 96.71% ======================================= Files 86 86 Lines 3886 3891 +5 ======================================= + Hits 3758 3763 +5 Misses 128 128 ``` | [Impacted Files](https://app.codecov.io/gh/neurodata/hyppo/pull/385?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=neurodata) | Coverage Δ | | |---|---|---| | [hyppo/independence/tests/test\_kmerf.py](https://app.codecov.io/gh/neurodata/hyppo/pull/385?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=neurodata#diff-aHlwcG8vaW5kZXBlbmRlbmNlL3Rlc3RzL3Rlc3Rfa21lcmYucHk=) | `87.50% <ø> (ø)` | | | [hyppo/independence/tests/test\_maxmargin.py](https://app.codecov.io/gh/neurodata/hyppo/pull/385?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=neurodata#diff-aHlwcG8vaW5kZXBlbmRlbmNlL3Rlc3RzL3Rlc3RfbWF4bWFyZ2luLnB5) | `100.00% <ø> (ø)` | | | [hyppo/independence/dcorr.py](https://app.codecov.io/gh/neurodata/hyppo/pull/385?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=neurodata#diff-aHlwcG8vaW5kZXBlbmRlbmNlL2Rjb3JyLnB5) | `97.67% <100.00%> (ø)` | | | [hyppo/independence/tests/test\_dcorr.py](https://app.codecov.io/gh/neurodata/hyppo/pull/385?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=neurodata#diff-aHlwcG8vaW5kZXBlbmRlbmNlL3Rlc3RzL3Rlc3RfZGNvcnIucHk=) | `100.00% <100.00%> (ø)` | | | [hyppo/ksample/tests/test\_ksamp.py](https://app.codecov.io/gh/neurodata/hyppo/pull/385?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=neurodata#diff-aHlwcG8va3NhbXBsZS90ZXN0cy90ZXN0X2tzYW1wLnB5) | `100.00% <100.00%> (ø)` | | | [hyppo/tools/common.py](https://app.codecov.io/gh/neurodata/hyppo/pull/385?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=neurodata#diff-aHlwcG8vdG9vbHMvY29tbW9uLnB5) | `94.17% <100.00%> (ø)` | |

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Do you have feedback about the report comment? Let us know in this issue.