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western fuels site 011 June 2008 <br />Program run on 06-30-2008 at 09:29:14 <br />RESULTS CALCULATED USING THE'BINOMINAL METHOD <br />NC. NUMBER NUMBER PERCENT BINOMIAL <br /> <br />-------- EXPOSED DEAD DEAD PROB.(PERCENT) <br />- <br />100 ---------------- <br />40 ------------- <br />8 --------------- <br />20.00 --------------------------- <br />0.0091 <br />75 40 8 20.00 0.0091 <br />50 40 2 5.00 LESS THAN 0.001 <br />25 40 5 12.50 LESS THAN 0.001 <br />12.5 40 2 5.00 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 />xESULTS CALCULATED USING THE PROBIT METHOD <br />-------------------------------------------------------------------------------- <br />GOODNESS OF FIT <br />ITERATIONS G H CHI-SQUARE PROBABILITY <br />-------------------------------------------------------------------------------- <br />3 0.876 1.000 3.491 0.322 <br />SLOPE= .8000152 <br />95 PERCENT CONFIDENCE LIMITS = <br />LC50 = 1259.688 <br />95 PERCENT CONFIDENCE LIMITS = <br />LC1 = 1.557555 <br />95 PERCENT CONFIDENCE LIMITS = <br />5.126053E-02 AND 1.54877 <br />244.6668 AND 5.206925E+23 <br />1.887316E-22 AND 8.819143 <br />COMPARE RESULTS WITH ORIGINAL DATA TO SEE IF THEY ARE <br />REASONABLE.