(I) years of service

(J) years of service

Mean Difference (I-J)

Std. Error

Sig.

95% Confidence Interval

Lower Bound

Upper Bound

1 - 10

11 - 20

1.173

1.493

0.861

−2.712

5.058

21 - 30

2.474

1.948

0.583

−2.592

7.542

31 - 40

3.443

1.895

0.270

−1.480

8.373