Figure 5.11 details the process flow for two types of customers who enter Barbaras Boutique shop for customized dress alterations. After step T4 and T7. After step T1, Type B customers proceed to step T5 and then steps T6 and T7. The numbers in parentheses are the minutes it takes to process a customer. a. What is the capacity of Barbaras shop in terms of the numbers of Type A customers who can be served in an hour ? Assume no customers are waiting at steps T1 or T7 .

b. If 30 percent of the customers are Type A customers and 70 percent are Type B customers, what is the average capacity of Barbara's shop in customers per hour?

c. Assuming that the arrival rate is greater than five customers per hour, when would you expect Type A customers to experience waiting lines, assuming no Type B customers in the shop? Where would the Type B customers have to wait, assuming no Type A customers?

Process Flow for Barbara's Boutique Customers