noun
confidence limit
Technical term in statistics and computing; the upper or lower bound of a confidence interval.
95%信頼限界を計算する。
Calculate the 95% confidence limit.
信頼区間 is the confidence interval (range), while 信頼限界 refers specifically to the boundary values (upper/lower limits) of that interval.
Compound of 信頼 (trust, reliability) and 限界 (limit, boundary), likely a calque from English 'confidence limit'.