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关注:1
2013-05-23 12:21
求翻译:Surveys were mailed by the APIC National Office, Washington, D.C., to a simple random sample of 1100 members of APIC on April 2, 1997. As of the end of 1996, APIC reported a total membership of 11,496. Physician, retired, and foreign members were excluded from the sampling frame. The sample of 1100 thus reflected about是什么意思? 待解决
悬赏分:1
- 离问题结束还有
Surveys were mailed by the APIC National Office, Washington, D.C., to a simple random sample of 1100 members of APIC on April 2, 1997. As of the end of 1996, APIC reported a total membership of 11,496. Physician, retired, and foreign members were excluded from the sampling frame. The sample of 1100 thus reflected about
问题补充: |
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