Cause of Variation

Sum of Squares (SS)

Degrees of Freedom (df)

Mean Square (MS)

Test Statistic (F)

P-Value

Critical F-Value

Sample

75.66

1

75.66

3.0742

0.0809

3.8833

Columns (Electrodes)

3452.40

15

230.16

9.3515

<0.0001

1.7112

Interaction

2763.57

15

184.24

7.4856

<0.0001

1.7112

Error

5513.12

224

24.61

Total

11804.74

255