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【单选题】
根据分析结果求得置信度为 95% 时,平均值的置信区间是 ( 28.05 ± 0.13) %, 意指A.
在 28.05 ± 0.13 区 间 内 包 括 总 体 平 均 值 m 的 把 握 有 95%
B.
未来测定的实验平均值 ，有 95% 落入 28.05 ± 0.13 区间中
C.
有 95% 的把握，总体平均值 μ 落入 28.05 ± 0.13 区间中
D.
已测定数据中，有 95% 落入 28.05 ± 0.13 区间中
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