Product/Statistic

Control

10% Replacement

20% Replacement

30% Replacement

Mean

7.30^a

8.37^b

7.13^a

6.97^c

Standard Deviation

1.32

1.38

1.51

1.90

Median

8.50

8.00

7.50

7.00

Minimum

3.00

4.00

3.00

2.00

Maximum

9.00

9.00

9.00

9.00