区间估计
差别
这里会显示出您选择的修订版和当前版本之间的差别。
| 后一修订版 | 前一修订版 | ||
| 区间估计 [2023/03/21 11:48] – 创建 yunyuqu | 区间估计 [2024/03/31 08:58] (当前版本) – zwz | ||
|---|---|---|---|
| 行 1: | 行 1: | ||
| - | ======区间估计====== | + | ====区间估计==== |
| + | ====interval estimates==== | ||
| * **方法产生的原因**：相比点估计，需要有更大的机会使估计准确 | * **方法产生的原因**：相比点估计，需要有更大的机会使估计准确 | ||
| + | |||
| + | ---- | ||
| + | |||
| * **区间估计的定义**：指明__一个区间__以及这个区间__覆盖总体未知参数的概率__的估计方法【相应的概率称为__置信度__1-α】。 | * **区间估计的定义**：指明__一个区间__以及这个区间__覆盖总体未知参数的概率__的估计方法【相应的概率称为__置信度__1-α】。 | ||
| - | * **置信区间的一般公式**：__点估计 ± (临界值)(标准误)__ | + | |
| + | |||
| + | ---- | ||
| + | |||
| + | | ||
| + | |||
| + | ---- | ||
| + | |||
| + | * **Causes of the methodology**：There needs to be a greater chance that the estimate would be more accurate than a point estimate. | ||
| + | |||
| + | ---- | ||
| + | |||
| + | * **The definition of interval estimates**：An estimate that specifies __an interval__ and __the probability of the overall unknown parameter__ covered by this interval【The corresponding probability is called __confidence level__ 1-α】。 | ||
| + | * **The relationship between confidence level and confidence intervals**： | ||
| + | |||
| + | ---- | ||
| + | |||
| + | * **The general formula for confidence intervals**：point estimate ± (critical value)(standard error) | ||
区间估计.1679399324.txt.gz · 最后更改: 2023/03/21 11:48 由 yunyuqu