Statistical significance (Statistical significance)

Significantly, also known as statistical significance (Statistical significance), refers to the null hypothesis is true under circumstances reject the null hypothesis to be borne by the level of risk, also known as probability level, or the level of significance. [1] significant meaning is any difference between the attitude of the two groups is due to the influence of systemic factors rather than causal factors. We assume control of all other factors that may affect the differences between the two groups, therefore, is to explain the rest of the factors we inferred, and this factor can not be 100% guaranteed, so there is a certain probability value, called the level of significance ( Significant level). Overall, it represents the ability to distinguish between each group. In statistical hypothesis testing, the probability value recognized small probability event is called significance level of statistical hypothesis testing, for the same amount, the measurement several times, and then calculate the average.