{ "cells": [ { "cell_type": "markdown", "source": [ "# Sampling Distributions\n", "\n", "This notebook has the plots and code to support the sampling, confidence, and boostrap lecture." ], "metadata": {} }, { "cell_type": "markdown", "source": [ "## Setup\n", "\n", "Python modules:" ], "metadata": {} }, { "cell_type": "code", "execution_count": 1, "source": [ "import numpy as np\r\n", "import pandas as pd\r\n", "import scipy.stats as sps\r\n", "import matplotlib.pyplot as plt\r\n", "import seaborn as sns" ], "outputs": [], "metadata": {} }, { "cell_type": "markdown", "source": [ "Set up a random number generator:" ], "metadata": {} }, { "cell_type": "code", "execution_count": 2, "source": [ "rng = np.random.default_rng(20200912)" ], "outputs": [], "metadata": {} }, { "cell_type": "markdown", "source": [ "Load the Penguin data:" ], "metadata": {} }, { "cell_type": "code", "execution_count": 3, "source": [ "penguins = pd.read_csv('../penguins.csv')" ], "outputs": [], "metadata": {} }, { "cell_type": "markdown", "source": [ "And we're going to want to look at just the chinstraps sometimes:" ], "metadata": {} }, { "cell_type": "code", "execution_count": 4, "source": [ "chinstraps = penguins[penguins['species'] == 'Chinstrap']\r\n", "chinstraps.head()" ], "outputs": [ { "output_type": "execute_result", "data": { "text/html": [ "
\n", " | species | \n", "island | \n", "bill_length_mm | \n", "bill_depth_mm | \n", "flipper_length_mm | \n", "body_mass_g | \n", "sex | \n", "year | \n", "
---|---|---|---|---|---|---|---|---|
276 | \n", "Chinstrap | \n", "Dream | \n", "46.5 | \n", "17.9 | \n", "192.0 | \n", "3500.0 | \n", "female | \n", "2007 | \n", "
277 | \n", "Chinstrap | \n", "Dream | \n", "50.0 | \n", "19.5 | \n", "196.0 | \n", "3900.0 | \n", "male | \n", "2007 | \n", "
278 | \n", "Chinstrap | \n", "Dream | \n", "51.3 | \n", "19.2 | \n", "193.0 | \n", "3650.0 | \n", "male | \n", "2007 | \n", "
279 | \n", "Chinstrap | \n", "Dream | \n", "45.4 | \n", "18.7 | \n", "188.0 | \n", "3525.0 | \n", "female | \n", "2007 | \n", "
280 | \n", "Chinstrap | \n", "Dream | \n", "52.7 | \n", "19.8 | \n", "197.0 | \n", "3725.0 | \n", "male | \n", "2007 | \n", "
\n", " | lo | \n", "hi | \n", "
---|---|---|
0 | \n", "48.460558 | \n", "51.501088 | \n", "
1 | \n", "49.713563 | \n", "53.065665 | \n", "
2 | \n", "47.943036 | \n", "50.575633 | \n", "
3 | \n", "48.858734 | \n", "51.382044 | \n", "
4 | \n", "48.087636 | \n", "50.666545 | \n", "
... | \n", "... | \n", "... | \n", "
995 | \n", "48.148537 | \n", "50.703322 | \n", "
996 | \n", "48.171565 | \n", "50.644276 | \n", "
997 | \n", "48.252690 | \n", "50.419871 | \n", "
998 | \n", "48.022458 | \n", "50.543743 | \n", "
999 | \n", "48.544989 | \n", "51.381232 | \n", "
1000 rows × 2 columns
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