Originally Posted by
warpdryv
Last long haul 788/789 flight the SD mentioned in response to a question that they always dim the lights/shades as it results in a statistically significant reduction in medical aids during the long haul flights. Apparently Middle Aged and older folks handle longer flights better when they nap.
How did they get to a statistically significant result without proper testing? Answer, they didn't. I use "stat sig" on a daily basis and it's often, shall we say, misused, as the end user just needs confirmation that what they want to do anyway is supported by the flimsiest of data.