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d.magna-Mountain Coal Co.-10/17/00 <br />Program run on 10-19-2000 at 12:58:04 <br />RESULTS CALCULATED USING THE BINOMINAL METHOD <br />------- <br />--------------- <br />--------- <br />------- <br />----- <br />------ <br />- <br />------- <br />CONC. NUMBER NUMBER --- <br />PERCENT ----- <br />BINOMIAL --------------- <br />EXPOSED DEAD <br />------------------------- <br />-------- DEAD <br />---- <br />- <br />------- PROB.(PERCENT) <br />------ <br />------ <br />---- <br />---- <br />100 20 0 - <br />- <br />0.00 ---- <br />LESS THAN ----- <br />---- <br />0.001 <br />75 20 0 0.00 LESS THAN 0.001 <br />50 20 0 0.00 LESS THAN 0.001 <br />25 20 0 0.00 LESS THAN 0.001 <br />1.9 20 0 0.00 LESS THAN 0.001 <br />AT A CONFIDENCE LEVEL OF 95 PERCENT, THE BINOMIAL TEST <br />SHOWS THAT THE LC50 IS ABOVE 100 <br />NO METHOD CAN CALCULATE AN LC50 IF THE PERCENT DEAD <br />IS THE SAME AT ALL TESTED CONCENTRATIONS. <br />COMPARE RESULTS WITH ORIGINAL DATA TO SEE ZF THEY ARE <br />REASONABLE. <br /> <br />