highly significantp < 0.0001
Analysis of response surface and contour plots For all types of oil yields, the single factor particle size (i.e., 150–355 μm) was shown to be statistically highly significant ( p < 0.0001).
Analysis of response surface and contour plots For all types of oil yields, the single factor particle size (i.e., 150–355 μm) was shown to be statistically highly significant ( p < 0.0001).