Discussion
The p-value of a statistical hypothesis test refers to :
Answer: C
The p-value refers to probability.
The p-value is the probability of obtaining a result at least as extreme as the one observed, assuming the null hypothesis is true. A small p-value, for example below 0.05, is taken as evidence against the null hypothesis.
Power is the probability of correctly rejecting a false null hypothesis, which is a different quantity. Practicality and 'parametric' have nothing to do with the p in p-value.
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