Cause of Variation

Sum of Squares (SS)

Degrees of Freedom (df)

Mean Square (MS)

Test Statistic (F)

P-Value

Critical F-Value

Sample

1068.83

1

1068.83

14.9212

0.0001

3.8833

Columns (Electrodes)

3213.66

15

214.24

2.9909

0.00022

1.7112

Interaction

3207.15

15

213.81

2.9849

0.00023

1.7112

Error

16045.43

224

71.63

Total

23535.08

255