$1.$ Financial security trading group in ACBC Investment Bank has collected data on their daily

profit along with its potential contributing factors in the Q$\mathrm{.}1$ tab.

$($a$)[3$pt$]$ Run a regression model $=0+11+22+33+44+$ in Excel,

where $$ is $$Profit$,$ and $1$ is $$S&P $500$ Index$,2$ is $$Transaction Errors$,3$ is

$$Downtime$,$ and $4$ is $$Transaction $/$ Trader$$