noun
significance level; critical p-value
Technical term in statistics; the threshold probability below which a null hypothesis is rejected. Commonly set at 0.05 or 0.01.
この研究では有意水準を5%に設定した。
In this study, the significance level was set at 5%.
p値が有意水準より小さければ、帰無仮説を棄却する。
If the p-value is smaller than the significance level, we reject the null hypothesis.
Compound of 有意 (significant) and 水準 (level), a direct translation of the English statistical term 'significance level'.