Bank | Bank A | Bank B | ||||
Date | 13/07/20 | 14/07/20 | 15/07/20 | 20/07/20 | 21/07/20 | 22/07/20 |
Total time (hours) | 1 | 1 | 1 | 1 | 1 | 1 |
Mean arrival rate | 28 | 17 | 20 | 20 | 9 | 17 |
Mean service rate | 24 | 16 | 18 | 17 | 6 | 15 |
Number of tellers | 3 | 3 | 3 | 2 | 2 | 2 |
Sample size | 28 | 17 | 20 | 20 | 9 | 17 |