I had evaluate the JMP output for Brown-Forsythe and Levene's test for Equal Variance under Fit X-Y analysis module. The values from the JMP Fit X-Y are F-Ratio, DOF for factor, DOF for sample, and Prop>F. I performed Levenes and Brown-Forsythe test in excel using the single factor ANOVA module in the data analysis add-on to complete the Levenes and Brown-Forsythe analysis. The F-ratio from JMP and the excel F values are different. If the F-ratio value is different from the F value, can the F-ratio be translated into an F-value? If F-ratio and F value are the same, why are there discrepancies between excel and JMP values? Any insight would be greatly appreciated.