样本比例的抽样分布

def solve():
    import pandas as pd
    import numpy as np
    import matplotlib.pyplot as plt
    from scipy.stats import norm
    url = '____'
    df = pd.read_csv(____)
    p = round(df['____'].mean(), ____)
    se = round((p*(____-p)/____)**.____, ____)
    print(____)
    print(____)
    x = np.linspace(____)
    plt.plot(x, norm.pdf(____), '____', lw=____)
    plt.axvline(____, color='____', ls='____', label='____')
    plt.fill_between(x, norm.pdf(____), where=(____), alpha=____, color='____')
    plt.xlabel(____); plt.ylabel(____); plt.title(____); plt.legend()
    plt.tight_layout(); plt.show()