区间估计

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--- 区间估计 [2023/03/21 11:49] – yunyuqu
+++ 区间估计 [2024/03/31 08:58] (当前版本) – zwz
@@ 行 1: / 行 1: @@
 ====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
+----
   * **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)__
+  * **置信度与置信区间的关系**：  置信度越高，置信区间越宽。即对估计越有把握，估计就越不准确。
+----
+  * **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 higher the confidence level is, the wider the confidence interval will be. The higher the confidence level, the wider the confidence interval.
+----
+  * **The general formula for confidence intervals**：point estimate ± (critical value)(standard error)

区间估计.1679399353.txt.gz · 最后更改: 2023/03/21 11:49 由 yunyuqu