You are asked to analyze the following network which is made up of a series of M/M/1 systems, defined as nodes S1, S2, S3, S4, S5, and S6. The time between arrivals follows an exponential distribution for interarriva times ( expo) and service completion times follow an exponential distribution for service times ( expo). The network satisfies all the assumptions for a Jackson Network. At node S4, what is the calculated Time in System (W), in hours? (provide two decimal place accuracy) Question 6 At node S6, what is the calculated Number in System (L) ? (Hint: this is only the number at node S6, not the entire network) (provide two decimal place accuracy)