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英语翻译Thissamplesizeprovidesa95%two-sidedconfidenceintervalhalf-widthforthedifferencebetweentheflarerateofthetwotreatmentgroupsofapproximately15%.

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英语翻译
This sample size provides a 95% two-sided confidence interval half-width for the difference between the flare rate of the two treatment groups of approximately 15%.
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答案和解析
这个样本提供了95%的两面信心间隔半宽度分别为两弹处理率约15%的群体.