Satistical Problem
Ukonneh
Homework10Answersheet.xlsxP1
| Lq = |
| W = |
| Wq = |
| If the arrival rate increases to 12 per hr., what would happen? |
P2
| ONE TELLER |
| Wq = |
| TWO TELLERS |
| Wq = |
| REDUCTION IN WAITING TIME = |
| ANNUAL INCREASE IN BANK REVENUES = |
| ANNUAL COST OF ADDITIONAL WINDOW = |
| BENEFIT FROM ADDING A SECOND WINDOW = |
P3
| a) CURRENT SITUATION |
| Lq = |
| W = |
| Wq = |
| TRUCKS REMAIN ___ MINUTES INSTEAD OF ___ MINUTES |
| OR ___MINUTES EXTRA AT A COST OF $____ PER MIN. = ________ |
| IN LOST REVENUES. |
| b) USING TWO SCALES |
| Lq = |
| W = |
| Wq = |
| TRUCKS REMAIN ___ MINUTES INSTEAD OF ___ MINUTES |
| OR ___ MINUTES EXTRA AT A COST OF $_____ PER MIN. = |
| IN LOST REVENUES. |
| COST OF SECOND SCALE |
| BENEFIT FROM ADDING SECOND SCALE |
P4
| ADDING SECOND ADVISOR |
| L = |
| Lq = |
| W = |
| Wq = |
| Should the second advisor be added? |
| Explain |
P5
| a) USING CURRENT REPAIR SERVICE | ||||
| W = | ||||
| LOST REVENUES = | per machine | |||
| b) USING NEW REPAIR SERVICE | ||||
| W = | ||||
| LOST REVENUES = | ||||
| SAVING IN REVENUES = | ||||
| EXTRA COST OF SERVICE = | ||||
| 24x vs. 12(x+10) | ||||
| x | x + 10 | 24x | 12(x+10) | difference |
| 10 | ||||
| 20 | ||||
| 5 | ||||
