If the manager decides to invest in the new equipment, the next step would be to calculate the average waiting time in the queue for the drivers. How much is this average in$-$queue waiting time?

The manager of a regional warehouse must decide on the number of loading docks to request for a new facility in order to minimize the sum of dock costs and driver$-$truck costs. The manager has learned that each driver$-$truck combination represents a cost of $$293$ per day and that each dock plus loading crew represents a cost of $$1,112$ per day. Use Table $18\mathrm{.}4.$