What is the probability for "How many steps are needed to distinguish a human-generated walk from a random walk (90% confidence)?" on Manifold?

Question

What is the probability for "How many steps are needed to distinguish a human-generated walk from a random walk (>90% confidence)?" on Manifold?

Accepted Answer

The current market probability is — with 9 traders and $8K in volume.

How many steps are needed to distinguish a human-generated walk from a random walk (>90% confidence)?