Cause of Variation

Sum of Squares (SS)

Degrees of Freedom (df)

Mean Square (MS)

Test Statistic (F)

P-Value

Critical F-Value

Sample

58.35

1

58.35

3.9970

0.0468

3.8833

Columns (Electrodes)

1012.29

15

67.49

4.6232

<0.0001

1.7112

Interaction

1077.83

15

71.86

4.9225

<0.0001

1.7112

Error

3269.82

224

14.60

Total

5418.28

255