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P.promelas-Mountain Coal Co.-10/04/99 <br />Program run on 10-08-1999 at 12:45:29 <br />RESULTS CALCULATED USING THE BINOMINAL METHOD <br />------ <br />C. ----------------- <br />NUMBER -------------- <br />NUMBER ---------- <br />PERCENT <br /> <br />------- EXPOSED <br />------------------ DEAD <br />-------------- DEAD <br />---------- <br />100 40 0 0.00 <br />75 40 0 0.00 <br />50 40 0 0.00 <br />25 40 0 0.00 <br />12.5 40 0 0.00 <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 IF THEY ARE <br />REASONABLE. <br /> <br />BINOMIAL <br />PROB.(PER <br />LESS THAN <br />LESS THAN <br />LESS THAN <br />LESS THAN <br />LESS THAN <br />ENT) <br />0.001 <br />0.001 <br />0.001 <br />0.001 <br />0.001 <br />• <br />