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v.8.7.009. EPA <br /> EPA OUTLIER TEST <br /> -2 <br /> 200 <br /> n = 60. Mean = 258.41 <br /> after outlier removal <br /> 235.7. <br /> Std. Dev. = 248.8, after <br /> 150 outlier removal 177.3. <br /> Critical Tn = 3.025 <br /> after outlier removal <br /> 3.019. <br /> Statistical outliers <br /> U 1 are shown as solid squares. <br /> Warning: data after <br /> outlier removal, were <br /> found to be neither normally <br /> nor log-normally distributed. <br /> Normality test used: <br /> _ Shapiro Francia. <br /> 50 - W Statistic = 0.9353 <br /> W Quantile = 0.962 <br /> 0 <br /> May 1990 Oct 1999 Feb 2009 <br /> Note: EPA guidance directs that statistical outliers should not be removed or altered unless independent evident <br /> error exists. <br /> Mituent: Specific Conductance [Field] (umhos/cm) Facility: French Camp LF Data File: FRENCHIN <br /> Date: 3/19/09, 11:29 AM Client: French Camp LF View: Batch <br /> ERST & ASSOCIATES, INC" <br />