please help answer 2 and 3

2. Ralph Abernathy owns a small cotfee shop. He wants to know the average number of customers queuing (lining up) in his coffee shop, to decide whether he needs to add more space to accommodate more customers. Currently, his queuing area can accommodate no more than eight people. Palph measured that, on average, 40 customers arrive at his colfee shop every hour. He also determined that, on average, a customer spends arcund d minutes in his store for 0.1 hours). Given these inputs, help Ralph find the average number of curtomers queuing (lining up) in his coffee shop so he can teli If he has enough space or whether he needs to expand. (Hint: This is a Littie's Liw application) 3. Reflect back to problem 2 above from Ralphis cotfee shop. a. What do the flow rate and flow time actually measure in any given system? If you were Ralph, how would you go about measuring the flow rate and flow time in his company. What would be some ways he codld measure both the flow-rate and the flow time so that he could calculate his average number of customers in line (or in the quese. b. Explain how the number of customers in Raiph's Colfee shop could be considered "irventory" in thits example? In your explanation, note two other types of measures that might be "inventory" in the coffee shop that are not what you would traditionally consider as inventory. TABLE 2.4 Time Stamps of the 8 Callers Who Called from 8:00 a.m. to 8:20a.m. to the Reservation Desk of a Ferry Service