Table 7 Validation of each response.

From: Synergistic effects and optimization of palm oil fuel ash and jute fiber in sustainable concrete

Response

Predicted

Actual

Error (%)

CS

61.29

59

3.73

STS

5.556

5.38

3.16

FS

4.914

4.7

4.35

MOE

36.928

35.6

3.59

UPV

3.944

4.01

1.67