某厂对一批产品的质量进行抽样检验,采用重复抽样抽取样品300只,样本优质率为90%,当把握程度为95%时优质品率的区间范围为() A: (80.85%,89.15%) B: (80.06%,89.94%) C: (86.61%,93.39%) D: (78.5%,91.5%)
某厂对一批产品的质量进行抽样检验,采用重复抽样抽取样品300只,样本优质率为90%,当把握程度为95%时优质品率的区间范围为() A: (80.85%,89.15%) B: (80.06%,89.94%) C: (86.61%,93.39%) D: (78.5%,91.5%)
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