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【单选题】
根据一个具体的样本计算的总体均值的95%置信区间( )A.
以5%的概率不包含总体均值的真实值
B.
包含总体均值真实值的概率为95%
C.
一定包含总体均值的真实值
D.
要么包含总体均值的真实值，要么不包含总体均值的真实值，二者必居其一
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反馈参考答案：
举一反三
【判断题】Salaried employees are actually more accurately described as exempt employees
A.
正确
B.
错误
【单选题】Employees are less enthusiastic about training because
A.
promotion doesn't take training into account.
B.
managers serve as a bad model for training.
C.
it is more and more difficult to get a promotion.
D.
game-based e-learning is the more updated trend.
【简答题】The idea that employees are responsible for what they do seems reasonable.
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