$1.$ To predict the daily Tesla returns, your supervisor advised two linear regression models:

Model A: Assuming a linear relationship between Tesla returns and Ford returns.

Model B: Assuming a linear relationship between Tesla returns and S&P $500$ index returns$\mathrm{.}1\mathrm{.}1$

For model A$,$ is the intercept coefficient significant at the $5\%$ level? Is the slope coefficient significant at the $1\%$ level?