Statistician: Two major studies found no causal link between medical procedure X and disorder Y, but these studies a...
Kathon September 27, 2019
Stimulus
I don't understand the even a doubling of the rate of disorder Y. Does it mean that even if the disorder Y has 0.04 of the population, the two studies still need more then 1100 people? Thank you!
1 Reply
Irinaon September 27, 2019
@Kath,
That's correct. This part of the argument refers to the fact that the disorder is so rare - only occurs in .02 percent of the population that even if it was double that - 0.04, 1100 people still would not be enough to detect it.
