Thermal engineering of stone increased prehistoric toolmaking skill.

Sci Rep · 2019 · PMC6787202 · PMID 31601931

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borderline significantno p-value reported

The sample distributions of platform depth (W = 0.96, p = 0.0046) and exterior platform angle (W = 0.97, p = 0.0447) differ significantly from an underlying normal one (exterior platform angle is only borderline significant).

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