两样本率比较的μ检验的备择假设是() A.P1=P2 B.P1≠P2 C.π1=π2 发布时间:2017-09-07 05:41 │ 来源:www.tikuol.com 题型:单项选择题 问题: 两样本率比较的μ检验的备择假设是()A.P1=P2B.P1≠P2C.π1=π2D.π1≠π2E.π1>π2
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