is LESS compatible with 7-Eleven Japan's competitive strategy. 9. (7-Eleven Japan) A. Low cost B. Availability C. Convenience D. Variety 10. (Single-Server Queues 1)* Below are arrival and service times of four single-server queues. (Hint: Mean arrrival time of 4 and mean service time of 3 are the same across all the queues.) (Queue W) Customer: 1 2 3 4 5 6 7 8 Mean Arrival times (hrs): 3 3 4 3 5 5 4 5 4 Service times (hrs): 1 5 4 2 5 2 1 3 1 4 (Queue X) 1 Customer: Arrival times (hrs): Service times (hrs): 2 3 4 3 4 4 4 3 5 5 4 wo NN 8 Mean 5 4 2 3 (Queue Y) Customer: Arrival times (hrs): Service times (hrs): 1 2 4 7 3 4 3 4 5 6 3 5 1 2 4 2 4 3 mlm NN 8 Mean 6 4 2 3 (Queue Z) 3 Customer Arrival times (hrs): Service times (hrs): 1 4 1 2 7 5 4 5 2 5 1 4 6 2 5 NN z 4 2 8 Mean 6 4 1 3 4 has the SMALLEST average flow time (W). (*Discuss briefly why.) A. Queue W B. Queue X C. Queue Y D. Queue Z