Age (yrs)

N

M

SD

Std. Error

95% Confidence Interval for Mean

Sum of Squares

df

Mean Square

F

Sig.

Lower Bound

Upper Bound

6

4

1.80

0.469

0.235

1.06

2.55

0.025

2

0.013

0.032

0.968

7

5

1.71

0.824

0.368

0.68

2.73

3.551

9

0.395

8

3

1.79

0.297

0.171

1.05

2.53

3.577

11

Total

12

1.76

0.570

0.165

1.40

2.12