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Western Fuels 011 Cd Acute 9/24/09 <br />Program run on 10-27-2009 at 15:31:47 <br />RESULTS CALCULATED USING THE BINOMINAL METHOD <br />- - ------------------ -------------- ------------- ---------------------------- <br /> NUMBER NUMBER PERCENT BINOMIAL <br /> <br />------- EXPOSED <br />------- DEAD DEAD PROB.(PERCENT) <br /> <br />100 ----------- <br />20 -------------- <br />2 ------------- <br />10.00 ---------------------------- <br />0.0201 <br />75 20 1 5.00 0.0020 <br />50 20 0 0.00 LESS THAN 0.001 <br />25 20 0 0.00 LESS THAN 0.001 <br />12.5 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 />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 />RESULTS CALCULATED USING THE PROBIT METHOD <br />-------------------------------------------------------------------------------- <br />GOODNESS OF FIT <br />ITERATIONS G H CHI-SQUARE PROBABILITY <br />-------------------------------------------------------------------------------- <br />7 2.028 1.000 0.228 0.973 <br />SLOPE = 4.604646 <br />95.PERCENT CONFIDENCE LIMITS = -1.953187 AND 11.16248 <br />LC50 = 184.6781 <br />95 PERCENT CONFIDENCE LIMITS = 114.257 AND + INFINITY <br />LC1 = 57.70431 <br />95 PERCENT CONFIDENCE LIMITS = 0 AND 79.31872 <br />COMPARE RESULTS WITH ORIGINAL DATA TO SEE IF THEY ARE <br />REASONABLE.