Wilcoxon符号秩检验

def solve():
    import pandas as pd
    import numpy as np
    import matplotlib.pyplot as plt
    from scipy.stats import wilcoxon
    np.random.seed(____)
    url = '____'
    df = pd.read_csv(____)
    sample = df['____'].sample(____)
    stat, p = wilcoxon(____)
    print(____)
    print(____)
    plt.hist(____)
    plt.axvline(____, color='____', ls='____', lw=____, label='____')
    plt.axvline(sample.median(), color='____', ls='____', lw=____, label=f'____')
    plt.xlabel(____); plt.ylabel(____); plt.title(____); plt.legend()
    plt.tight_layout(); plt.show()