answer me plz

Jobs arrive randomly at a particular assembly plant; assume that the given arrival rates in the table below has a Poisson distribution and service times (in minutes per job) do not follow the exponential probability distribution. Four proposed designs for the plant's assembly operation are shown: Compute the average time in the assembly plant for each design and decide which design provides the best performance? Jobs arrive randomly at a particular assembly plant; assume that the given arrival rates in the table below has a Poisson distribution and service times (in minutes per job) do not follow the exponential probability distribution. Four proposed designs for the plant's assembly operation are shown: Compute the average time in the assembly plant for each design and decide which design provides the best performance