Increasing the desired confidence level will widen the confidence interval.
增加理想中的置信程度将会加宽置信区间。
How likely the interval is to contain the parameter is determined by the confidence level or confidence coefficient.
置信程度或置信系数决定了区间将在何种程度上涵括参数。
They also state a level of confidence for the interval, usually 90% or 95%.
他们还为国家一区间的置信水平，通常为90%或95%。
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