设 https://assets.asklib.com/images/image2/2017073016423299642.jpg 是来自正态总体X的一个容量为n的样本, https://assets.asklib.com/images/image2/2017073016424660986.jpg , https://assets.asklib.com/images/image2/2017073016432247189.jpg ,则下列结论中不正确的有()。

A .https://assets.asklib.com/images/image2/2017073016433828052.jpg B .https://assets.asklib.com/images/image2/2017073016434380962.jpg C .https://assets.asklib.com/images/image2/2017073016434973833.jpg D .https://assets.asklib.com/images/image2/2017073016435728137.jpg

时间:2022-09-28 16:23:47 所属题库:统计学综合练习题库

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