$2.$ You have been given the following monthly data:

Company ai $($Intercept$)\backslash$sigma i riM

Intel $0\mathrm{.}2413\mathrm{.}3\%0\mathrm{.}71$

Ford $0\mathrm{.}0914\mathrm{.}00\mathrm{.}20$

Anheuser $0\mathrm{.}157\mathrm{.}90\mathrm{.}56$

Merck $0\mathrm{.}0310\mathrm{.}60\mathrm{.}69$

S&P $5000\mathrm{.}005\mathrm{.}51\mathrm{.}00$

A$)$ Compute the beta coefficient for each stock.

B$)$ Assuming a risk$-$free rate of $6$ percent and an expected return for the market portfolio of $13$ percent, compute the expected $($required$)$ return for all the stocks.