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[lab-confidence-intervals] Henrik Söder #225

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72 changes: 62 additions & 10 deletions your-code/main.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -9,11 +9,14 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 2,
"metadata": {},
"outputs": [],
"source": [
"# Libraries"
"import pandas as pd\n",
"import numpy as np\n",
"\n",
"import scipy.stats as st"
]
},
{
Expand All @@ -32,11 +35,37 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 13,
"metadata": {},
"outputs": [],
"source": [
"# your code here"
"heights = [167, 167, 168, 168, 168, 169, 171, 172, 173, 175, 175, 175, 177, 182, 195]\n",
"\n",
"mean = np.mean(heights)\n",
"std = 4\n",
"n = len(heights)\n",
"\n",
"alpha = 0.8"
]
},
{
"cell_type": "code",
"execution_count": 14,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"(172.14308590115726, 174.79024743217607)"
]
},
"execution_count": 14,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"st.norm.interval(alpha, loc=mean, scale=std/np.sqrt(n))"
]
},
{
Expand All @@ -51,11 +80,34 @@
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 21,
"metadata": {
"scrolled": true
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Proportion with 80%: (0.20927226997969411, 0.3190296168127587)\n",
"Proportion with 90%: (0.19371492861666578, 0.334586958175787)\n"
]
}
],
"source": [
"# your code here"
"x = list(np.arange(106))\n",
"x = [True if i <=27 else False for i in x]\n",
"mean = np.mean(x)\n",
"n = len(x)\n",
"std = np.std(x)\n",
"\n",
"\n",
"\n",
"alpha_80 = st.norm.interval(0.8, loc=mean, scale=std/np.sqrt(n))\n",
"alpha_90 = st.norm.interval(0.9, loc=mean, scale=std/np.sqrt(n))\n",
"\n",
"print(\"Proportion with 80%: \", alpha_80)\n",
"print(\"Proportion with 90%: \", alpha_90)"
]
},
{
Expand Down Expand Up @@ -131,7 +183,7 @@
],
"metadata": {
"kernelspec": {
"display_name": "Python 3",
"display_name": "Python 3 (ipykernel)",
"language": "python",
"name": "python3"
},
Expand All @@ -145,7 +197,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.7.3"
"version": "3.11.4"
}
},
"nbformat": 4,
Expand Down