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P. Promelas Western Fuels 007 3-3-04 1335 <br />Program run on 03-09-2004 at 15:36:31 <br />ULTS CALCULATED USING THE BINOMINAL METHOD <br />-- <br />- <br />- <br />- <br />- <br />---- <br />CONC. ----------------- <br />NUMBER --------------- <br />NUMBER - <br />--------- <br />PERCENT --- <br />-- <br />------ <br />BINOMIAL -------------- <br /> EXPOSED DEAD DEAD PROB. (PERCENT) <br />------- <br />100 ---- --- --- <br />40 ------ -- <br />0 <br />0.00 <br />LESS <br />THAN -- --- <br />0.001 <br />75 40 1 2.50 LESS THAN 0.001 <br />50 40 2 5.00 LESS THAN 0.001 <br />25 40 1 2.50 LESS THAN 0.001 <br />12.5 40 1 2.50 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,CALCULATZON 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 />• <br />hLSULTS CALCULATED USING THE PROBIT METHOD <br />----------- ------------------- ------------------ ------------- ------------------- <br />GOODNESS OF FIT <br />ITERATIONS G H CHI-SQUARE PROBABILITY <br />---------- <br />4 -------------------- <br />20.536 ------------------ <br />1.000 ------------- <br />2.152 ------------------- <br />0.541 <br />SLOPE _ -.2447533 <br />95 PERCENT CONFIDENCE LIMITS = -1.353895 AND .8643883 <br />LC50 = 3.800858E-07 <br />95 PERCENT CONFIDENCE LIMITS = 0 AND 1.437076 <br />LC1 = 1214.936 <br />95 PERCENT CONFIDENCE LIMITS = 36.99496 AND + INFINITY <br />COMPARE RESULTS WITH ORIGINAL DATA TO SEE IF THEY ARE <br />REASONABLE. <br /> <br />