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Intuitive Sample Size & Power Calculator
Calculate sample size and conduct a power analysis with a clean & easy to use interface
强大的样本大小选项
使用我们的样本量计算器快速计算多种情况下的样本大小
Installation Qualification/ Operational Qualification
In regulated environments, it is required that all software has been fully qualified. To assist in this nQuery provides the installation qualification and operational qualification tools.
With hundreds of tables for different study designs and tests you can be confident that you will have a validated sample size determination method appropriate for your study. In our sample size software, each sample size table is thoroughly tested and fully validated against the latest regulatory requirements.
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