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【单选题】
要评价某市一名 8 岁男孩的身高是否偏高或偏矮,用的统计方法是A.
该市 8 岁男孩身高的 95% 或 99% 正常值范围来评价
B.
作身高差别的假设检验来评价
C.
用身高均数的 95% 或 99% 可信区间来评价
D.
不能作评价
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A.
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B.
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C.
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A.
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