From c8bb6eb1737baf63ddee9e9f5b306f3d258d9f9a Mon Sep 17 00:00:00 2001 From: benjas <909336740@qq.com> Date: Sun, 15 Nov 2020 15:38:37 +0800 Subject: [PATCH] =?UTF-8?q?Create=20Z=E6=A3=80=E9=AA=8C=E6=A1=88=E4=BE=8B?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../假设检验-checkpoint.ipynb | 131 ++++++++++++++++++ .../assets/20201115111943.png | Bin 0 -> 64361 bytes .../assets/20201115112520.png | Bin 0 -> 103557 bytes .../assets/20201115151902.png | Bin 0 -> 47553 bytes .../assets/20201115152913.png | Bin 0 -> 38839 bytes .../假设检验章节/假设检验.ipynb | 131 ++++++++++++++++++ 6 files changed, 262 insertions(+) create mode 100644 notebook_必备数学基础/假设检验章节/assets/20201115111943.png create mode 100644 notebook_必备数学基础/假设检验章节/assets/20201115112520.png create mode 100644 notebook_必备数学基础/假设检验章节/assets/20201115151902.png create mode 100644 notebook_必备数学基础/假设检验章节/assets/20201115152913.png diff --git a/notebook_必备数学基础/假设检验章节/.ipynb_checkpoints/假设检验-checkpoint.ipynb b/notebook_必备数学基础/假设检验章节/.ipynb_checkpoints/假设检验-checkpoint.ipynb index 2ff0470..96d43d9 100644 --- a/notebook_必备数学基础/假设检验章节/.ipynb_checkpoints/假设检验-checkpoint.ipynb +++ b/notebook_必备数学基础/假设检验章节/.ipynb_checkpoints/假设检验-checkpoint.ipynb @@ -268,6 +268,137 @@ "$$" ] }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Z检验实例\n", + "### Z检验实例1:" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "研究正常人与高血压患者胆固醇含量(mg%)的资料如下,试比较两组血清胆固醇含量有无差别。\n", + "
\n", + "正常人组 \n", + "$$\n", + "n_1 = 506,\\overline{X}_1 = 180.6,S_1 = 34.2\n", + "$$\n", + "样本数506,均值1800.6,标准差34.2\n", + "
\n", + "
\n", + "高血压组\n", + "$$\n", + "n_2 = 142,\\overline{X}_2 = 223.6,S_2 = 45.8\n", + "$$" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "建立检验假设,确定检验水平\n", + "\n", + "计算统计量Z\n", + "