3 ms·
Putting common sense aside. And pretend the height of jump thing is some super abstract and nuanced thing you didn’t spot. Does this result simply mean you jus
by quickthrower2 3y ago
Putting common sense aside. And pretend the height of jump thing is some super abstract and nuanced thing you didn’t spot.
Does this result simply mean you just can’t reject the null hypothesis (parachute makes no difference)? Rather than a proof of it?
- kqr 3y agoAll this means is that statistical significance is not enough to reject anything. All statistical significance means is that the effect did not come from sampling error. It can come from any number of other confounders still. Statistical significance is a hint that it could be worth running more replication studies, and vary the conditions in other studies. Significance alone does not indicate the effect as real.
- LanceH 3y agoI think this result actually shows that a parachute doesn't increase death/trauma when exiting a non-moving plane from 2 feet up. So, worst case for parachute wearers is that they are no worse off than without one. Parachutes are safe for use with regards to de-planing.