$3-$ A hotel has three sections called international passengers, local passengers

and general services. Ench department has $25$ personnel plus $5$ additional

general services providers like receptions, accountants, etc.$).$ In order to

analyze behavior of this hotel and in order for improving its quality of services

and consequently enhancing profitability index, we have developed a

simulation model. $(15$ points$)$

A$-$ In input analysis, skewness index is equal to $-0\mathrm{.}66.$ What does it mean?

B$.$ After running $1000$ epochs, the crror amount $($according to average waiting

times$)$ is less than $1\%.$ What do you suggest? Is it needed to continue?

C$-$ Which policy$/$scenario do you recommend to simulate in order to optimize the

performance and profitability of this hotel?