If the effect size is this large, then n=37 is perfectly sufficient to assert that the effect exists; however, the issue is about sample selection, as "n compan

If the effect size is this large, then n=37 is perfectly sufficient to assert that the effect exists; however, the issue is about sample selection, as "n companies from the Reach Capital portfolio" can't be reasonably considered to be a representative sample of all startups, so it can't be assumed that the conclusions can be extrapolated beyond the niche of startups like these which Reach Capital selects to fund, perhaps it depends on location or domain or size or other characteristics which affect what Reach Capital funds.