Oh, it's way more complicated than that. I've been tracking the Nuwa myth for 15 years. She pops up in Western, Steppe and Eastern cultures. The little clay figures are more appropriately 9 stone eggs. It would just take a few weeks to explain everything of this far traveled diety without coming off as a total crack pot.
As to Noah.... sure. She's a flood myth goddess. Some similarity, but in a sense she made the flood, not rode in the ship with all the animals. And she does it as part of the divine wrath and judgment on A fallen society. The whole earth doesn't flood, just the capital.
Nuwa cult still exists in parts of China. Died out in the west and middle east. They still have close links to the myth in the steppe, but translation issues exist.