For instance, Wifi enabled means the device can use Wifi, and that it's Wifi antenna is turned on. If you disable Wifi, it's the same as turning it off. PoohBearPenguin Â· 2 years ago
This situation is unusual; if you are in any doubt then use a two sided P value. The term significance level (alpha) is used to refer to a pre-chosen probability and the term P value is used to indicate a probability that you calculate after a given study.
P-values are Random Variables How should we teach them? We should emphasize that p-values are random variables Start by saying the p-value is simply a transformation of the test statistic. If the audience has enough mathematical sophistication, give a formula: p = 1 F(tobs) where F() is the CDF of T under H0.