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• Endpoint <br />. Comparison <br />Procedure" <br />Survival <br />Reduction Relative to <br />Control <br />Fisher's Exact Test <br />(a =0.05) <br />IC (25 Percent Inhibition <br />Concentration) <br />Inspection <br />Reproduction <br />(Mean Young per Adult) <br />Normality <br />Chi- Square Goodness of Fit <br />Test (as0.01) <br />Homogeneity of Variances <br />Bartlett's Test (as0.01) <br />Reduction Relative to <br />Control <br />Steel's Many -One Rank <br />Test (a =0.05) <br />IC (25 Percent Inhibition <br />Concentration) <br />Linear Interpolation <br />\ <br />Endpoint <br />Value <br />(i ercent effluent) <br />Survival NOEC <br />(No Observed Effect Concentration) <br />100 <br />Survival LOEC <br />(Lowest Observed Effect Concentration) <br />N/A <br />Survival IC <br />>100 <br />Chronic NOEC <br />(No Observed Effect Concentration) <br />46 <br />Chronic LOEC <br />(Lowest Observed Effect Concentration) <br />75 <br />ChV (Chronic Value) <br />59 <br />Chronic IC /5 <br />56 <br />7.2 Data Analysis <br />8503 - 099 -193 -010 <br />Hypothesis testing was conducted using Toxstat Version 3.4 software (West, Inc. and <br />Gulley 1994). The survival IC25 was determined by inspection since survival was not <br />reduced by z 25 percent in any of the effluent treatments, relative to the dilution water <br />control. The chronic IC was calculated using USEPA approved software (Norberg -King <br />1993). Statistical methods were as follows: <br />7.3 Test Endpoints <br />7 <br />