9.5: 章节公式回顾
- Page ID
- 205036
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9.3 假设检验所需的分布
\ (\ pageIndex {6}\) 均值检验、不同样本量、总体已知或未知的检验统计量” >样本量 | 测试统计数据 |
---|---|
< 30 (\(\sigma\)未知) | \(t_{c}=\frac{\overline{X}-\mu_{0}}{s / \sqrt{n}}\) |
< 30 (\(\sigma\)已知) | \(Z_{c}=\frac{\overline{X}-\mu_{0}}{\sigma / \sqrt{n}}\) |
> 30 (\(\sigma\)未知) | \(Z_{c}=\frac{\overline{X}-\mu_{0}}{s / \sqrt{n}}\) |
> 30 (\(\sigma\)已知) | \(Z_{c}=\frac{\overline{X}-\mu_{0}}{\sigma / \sqrt{n}}\) |