One field representative services $5$ customers for a computer manufacturer. Customers request assistance at an average $($Poisson$-$distributed$)$ rate of once every $3\mathrm{.}0$ working days. The field representative can handle an average $($Poisson$-$distributed$)$ of $1\mathrm{.}0$ call per day. Determine the following: Use Table $1.$

The expected number of customers waiting.

Note: Round $"$X$"$ value to $2$ decimal places. Round your answer to $3$ decimal places.

The average length of time customers must wait from the initial request for service until the service has been completed.

Note: Round your answer to $2$ decimal places.

The percentage of time the service rep will be idle.

Note: Round your answer to $1$ decimal place.

How much your answer to part a would be reduced if a second field rep were added?

Note: Round your answer to $3$ decimal places.

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