Statistical Significance
01 Definition
Statistical Significance meaning: A threshold used to judge whether an observed result is unlikely under a null model.
In an experiment statistical significance compares observed data with what might occur through random variation if no true difference existed. It does not measure business importance or guarantee replication.
Also called
significance
Why it matters
How Statistical Significance fits the work
It helps teams avoid declaring every visible fluctuation a winner.
In context
The test reached statistical significance but the revenue effect was too small to matter.
Practical note
Report confidence uncertainty sample design and practical effect size instead of relying on one threshold.