Hypothesis testing of mean for single normal population variance unknown

发布日期 ： 2021-01-28 01:30:12 UTC      

分类 ： Electronic

1,输入每个样本值或样本量加上计算的样本平均值和样本标准差：
输入每个样本值 输入样本量、样本平均值和样本标准差
在以下多行输入框中输入样本值（以逗号或空白字符分隔）
2,选择重要性水平 α
0.1 0.05 0.025 0.01 0.005 0.001
3,设置假设选项（原始假设是 H0,备择假设为 H 1)：
H0:μ=μ0, H1:μ≠μ0
H0:μ≤μ0, H1:μ>μ0
H0:μ≥μ0, H1:μ<μ0
进入 μ0 在输入框中,μ0＝
4,点击右侧的“开始检查”按钮开始检查。

It is known that the overall <i>X</i> obeys a normal distribution with a mean of μ, a standard deviation of σ, and a variance of σ<sup>2</sup>, ie <i>X</i>~<i> N</i>(μ,σ<sup>2</sup>), This page deals with the case where the variance or standard deviation is unknown and the hypothesis is tested. The test statistic is

<img align="middle" alt="" src="http://drr.ikcest.org/static/upload/0f/0f5395fe-ecb3-11e9-80df-00163e0618d6_m.jpg" style="width: 90px; ">。<br>

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