Source of Variation

Sum of Squares

Degrees of Freedom

Mean Square

Fo

f_critical

P value

Significant

Collector

34.18

3

11.39

3.98

3.24

0.027

Yes

Frother

15.80

3

5.27

1.84

3.24

0.181

No

Interaction

36.38

9

4.04

1.41

2.54

0.263

No

Error

45.82

16

2.86

Total

132.18

31