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[lab-confidence-intervals] Carolina Silva #209

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59 changes: 49 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 +9,13 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 21,
"metadata": {},
"outputs": [],
"source": [
"# Libraries"
"import pandas as pd\n",
"import numpy as np\n",
"import scipy.stats as st"
]
},
{
Expand All @@ -32,11 +34,28 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 4,
"metadata": {},
"outputs": [],
"outputs": [
{
"data": {
"text/plain": [
"(172.14308590115726, 174.79024743217607)"
]
},
"execution_count": 4,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"# your code here"
"heights = [167, 167, 168, 168, 168, 169, 171, 172, 173, 175, 175, 175, 177, 182, 195]\n",
"\n",
"mean = sum(heights) / len(heights)\n",
"n = 15\n",
"std = 4\n",
"\n",
"st.norm.interval(0.80, loc = mean, scale = std/np.sqrt(n))"
]
},
{
Expand All @@ -51,11 +70,31 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 26,
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"80% Confidence Interval: (0.2548114047320704, 0.2594743095536438)\n",
"90% Confidence Interval: (0.2541504703696276, 0.2601352439160866)\n"
]
}
],
"source": [
"# your code here"
"n = 105\n",
"shops_with_losses = 27\n",
"\n",
"proportion = shops_with_losses / n\n",
"\n",
"standard_error = (proportion * (1 - proportion)) / n\n",
"\n",
"interval_80 = stats.norm.interval(0.80, loc=proportion, scale=standard_error)\n",
"interval_90 = stats.norm.interval(0.90, loc=proportion, scale=standard_error)\n",
"\n",
"print(f\"80% Confidence Interval: {interval_80}\")\n",
"print(f\"90% Confidence Interval: {interval_90}\")"
]
},
{
Expand Down Expand Up @@ -131,7 +170,7 @@
],
"metadata": {
"kernelspec": {
"display_name": "Python 3",
"display_name": "Python 3 (ipykernel)",
"language": "python",
"name": "python3"
},
Expand All @@ -145,7 +184,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.7.3"
"version": "3.10.9"
}
},
"nbformat": 4,
Expand Down