Table 6 Response for signal-to-noise ratios.

From: In situ epoxidation of hybrid waste cooking oil and oleic acid via peracid mechanism

Level

Temperature

Speed

Molar ratio

1

29.81

28.04

27.16

2

26.05

26.05

26.94

3

25.17

26.05

26.05

4

25.17

26.05

26.05

Delta

4.63

1.99

1.11

Rank

1

2

3