reply on: 10,700 drivers removed → 72% of freight rides trucks \ stacker news

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How about English proficiency?

drivers “know what the road signs mean, but they may get nervous when questioned by officials at a stop”

So, you're saying you prefer to have lower standards on English proficiency for drivers, as long as it means lower priced freight.

"There is no statistical evidence linking the nationality of a commercial driver to safety outcomes in the U.S."

So no, I don’t want higher freight prices unless there’s demonstrated safety benefit proportional to removing 10,700 drivers.

“do not imply a causal relationship”

doesn’t establish language as the cause

burden of proof is on the null hypothesis now, imo.

Correlation → not causation → burden stays on the causal claim.

I've shown:

Statistical evidence of positive correlation between limited English proficiency and higher accident rates, in which there is a clear hypothesized causal channel.
Statistical evidence that if the 8,000ish LEP drivers in the analysis sample had been prohibited from driving, accident rates would have been lower in the remaining population of drivers -- regardless of causal channel.

Ball is in your court to deliver an alternative hypothesis and evidence supporting the alternative hypothesis.