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Western Fuels 007 FH Acute ov 2006 <br />Program run on 11-13-2006 at 11:21:35 <br />'ULTS CALCULATED USING THE BINOMINAL METHOD <br />------ <br />CONC. --------------- <br />NUMBER -------------- <br />NUMBER --------------- <br />PERCENT --------------------------- <br />BINOMIAL <br /> <br />----- <br />-- EXPOSED <br />---- <br />---- DEAD DEAD PROB.(PERCENT) <br />- <br />100 -- <br />----- <br />40 -------------- <br />0 -------------- <br />0.00 ---------------------------- <br />LESS THAN 0.001 <br />75 40 0 0.00 LESS THAN 0.001 <br />50 40 0 0.00 LESS THAN 0.001 <br />' <br />25 40 1 2.50 LESS THAN 0.001 <br />12.5 40 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 />THE USEFULNESS OF ANY LC50 CALCULATED FROM THIS SET OF DATA <br />' IS QUESTIONABLE BECAUSE A CONCENTRATION-EFFECT RELATIONSHIP <br />HAS NOT BEEN DEMONSTRATED OVER A REASONABLE RANGE (e.g. <br /><37 TO>63 OF PERCENT DEAD <br />NEITHER THE APPROXIMATE LC50 CALCULATION NOR THE MOVING <br />AVERAGE METHOD CAN BE USED WITH THIS SET OF DATA. <br />EITHER THE HIGHEST CONCENTRATION KILLED LESS THAN 50 <br />'PERCENT OR THE LOWEST KILLED MORE THAN 50 PERCENT. <br />IF THE PROBIT SLOPE IS NEGATIVE, ENTER THE DATA AGAIN <br />' USING THE NUMBER ALIVE INSTEAD OF THE NUMBER DEAD. <br />WHEN THERE ARE LESS THAN TWO DIFFERENT CONCENTRATIONS AT <br />WHICH THE PERCENT DEAD IS BETWEEN 0 AND 100, THE PROBIT <br />I METHOD CANNOT GIVE ANY STATISTICALLY SOUND RESULTS. <br />COMPARE RESULTS WITH ORIGINAL DATA TO SEE IF THEY ARE <br />REASONABLE. <br />~~~ <br />