Figure 1.
Pareto chart of standardized effects on sublancin 168 production. X 1, X 2, X 3, X 4, X 5, X 6, X 7, X 8, X 9, and X 10 are the coded values of peptone, corn powder, starch, soybean meal, KH2PO4, (NH4)2SO4, incubation temperature, initial pH, incubation time, and inoculum size, respectively. The chart has a vertical line (i.e., standardized effect = 1.886) at the critical t-value for α of 0.20. The bars are shown in order of the size of the effects, and the standardized effect of every term was displayed on the top of its corresponding bar.