回归系数显著性t检验

def solve():
    import pandas as pd
    import matplotlib.pyplot as plt
    import statsmodels.api as sm
    url = '____'
    df = pd.read_csv(____)
    X = sm.add_constant(____)
    model = sm.OLS(____).fit()
    beta1_t = model.tvalues[____]
    beta1_p = model.pvalues[____]
    print(____)
    print(____)
    plt.scatter(____)
    plt.plot(df['____'], model.predict(____), '____', lw=____)
    plt.xlabel(____); plt.ylabel(____); plt.title(____)
    plt.tight_layout(); plt.show()