highly significantp -value < 0.0001
The analysis of variance (ANOVA) revealed a highly significant model (F-value = 220.94, p -value < 0.0001), indicating that at least one of the studied factors (incubation time (X 1 ), initial pH level (X 2 ), AgNO 3 concentration (X 3 ), and temperature (X 4 ) significantly affected the rate of AgNPs biosynthesis.