Y =  α + βx 95% fiducial limit (ppm) Calculated LC50 (ppm) Observed LC50 (ppm)
0.6242 + 9.9484x 1.7632 - 3.7368 2.75 2.79
Table 1: Regression equations, 95% fiducial limits with LC50 values for Marcia opima exposed to Cypermethrin.