in the statsmodels summary, what does the P>|t| and t mean in relation to the variables when it says something like:
coef std err t P>|t| [95.0% Conf. Int.]
Intercept 7.0326 0.458 15.360 0.000 6.130 7.935
TV 0.0475 0.003 17.668 0.000 0.042 0.053
t is the value of the t-statistic for testing if the corresponding coefficient is different from 0. (Hypothesis H0: coef==0, H1: coef!=0)
Pr>|t| is the p-value for this hypothesis test. A low p-value means, that you can reject the null-hypothesis and accept the alternative hypothesis (coef!=0).