**8. ANOVA on physical and strength properties of composite board oil palm fronds**

The analysis of variance (ANOVA) on the physical and the strength properties of the composite oil palm fronds is shown in **Table 7**. The ANOVA was used to determine the significant level between the physical and the strength properties with the dependent variables such as the maturity groups, portions, and types of resin used in the boards made. Based on the ANOVA (**Table 7**), there were significant differences between the physical and strength properties of the boards. Significant differences exist between the maturity groups and the portions. It shows that the physical and strength properties of the boards were affected and influenced by these factors—substantial differences at p-value ≤ 0.01exists between them. No significant difference exists between physical properties and strength properties with the application in the types of resin used. The phenol or urea-formaldehyde resin used to produce these boards give quite similar values in the test results.
