he figure below details the process flow for two types of customers who enter$$ Barbara's Boutique shop for customized dress alterations. After step$$ T$1,$ Type A customers proceed to step T$2$ and then to any of the three workstations at$$ T$3,$ followed by steps T$4$ and T$7.$ After step$$ T$1,$ Type B customers proceed to Step T$5$ and then steps T$6$ and T$7.$ The numbers in parentheses are the minutes it takes to process a customer. If $30$ percent of the customers are Type A customers and $70$ percent are Type B$$ custome Assuming that the arrival rate is greater than five customers per$$ hour, when would you expect Type A customers to experience waiting$$ lines, assuming no Type B customers in the$$ shop?