# Statistical significance [duplicate]

What does it mean a value is statistically significant and when does it occur? For example, at a 5% level of significance, do p-values above or below 0.05 indicate significance?

For Example:-you observed a sample mean $\bar x$ and you check if its significantly different from population mean $\mu$. You can test by Z-test or else. the statistical tests tell you whether the difference is Random in nature(i.e. under the confidence interval) or its Statistically significant.
P-value:- It is the minimum level where value is statistically significant(you can reject $H_0$)
So, reject $H_0$ if p-value less than or equal to level of significance.