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一家医院想估计患者对医疗服务的满意度。院长知道性别和年龄段对感知有很大影响。哪种抽样类型最合适?证明理由。
一家医院想估计患者对医疗服务的满意度。院长知道性别和年龄段对感知有很大影响。哪种抽样类型最合适?证明理由。
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