Years of Service | N | M | S.D |
1 - 5 years | 51 | 29.76 | 4.82 |
5 - 10 years | 44 | 28.25 | 5.29 |
10 - 20 years | 69 | 30.60 | 4.76 |
20 or more years | 52 | 29.40 | 3.98 |
Total | 216 | 29.50 | 4.72 |