某研究者欲了解某地正常成年男性和女性的红细胞总体平均水平是否有差异,随机抽样测定了该地40名正常成年男性和40名正常成年女性的红细胞数,算得男性红细胞均数为4.68×![](http://data:image/png;base64,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) file:///C:\Users\胡文建\AppData\Local\Temp\ksohtml\wps35B2.tmp.jpg /L,标准差为0.57×![](http://data:image/png;base64,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) file:///C:\Users\胡文建\AppData\Local\Temp\ksohtml\wps35B3.tmp.jpg /L;女性红细胞均数为4.16×![](http://data:image/png;base64,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) file:///C:\Users\胡文建\AppData\Local\Temp\ksohtml\wps35B4.tmp.jpg /L,标准差为0.31×![](http://data:image/png;base64,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) file:///C:\Users\胡文建\AppData\Local\Temp\ksohtml\wps35B5.tmp.jpg /L。该研究设计类型和资料类型分别是()。
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