Unverified50% confidenceFactExact time
99.3%通过率（283/285）对应的95%置信区间约为97.5%-99.9%（使用Wilson区间估计）
1
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50%
Confidence
Long-term
Relevance
8/24/2026
First Seen
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Related Claims
UnverifiedRaising the confidence level from 95% to 99% (z-value 2.576) will expand the margin of error by approximately 31% for the same sample size.70% similarUnverifiedA 95% confidence level means that if the same methodology were used to conduct 100 surveys, approximately 95 of them would produce results falling within the margin of error.69% similarUnverifiedThe standard normal quantile z-value corresponding to the 95% confidence level is approximately 1.96.68% similarUnverifiedResearch shows that when humans assign 90% confidence, their actual accuracy rate is often only around 70%, indicating a systematic overconfidence66% similar
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