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v.8.7.009. EPA <br /> EPA OUTLIER TEST <br /> -1 <br /> 250 <br /> n = 60. Mean = 266.9, <br /> after outlier removal <br /> 234.1. <br /> Std. Dev. = 298.9, after <br /> 200 outlier removal 159.2. <br /> Critical Tn = 3.025 <br /> after outlier removal <br /> 3.019. <br /> 150 <br /> Statistical outliers <br /> I are shown as solid squares. <br /> Data, after outlier removal, <br /> were found to be log-normally <br /> 100 �_� distributed. <br /> Normality test used: <br /> Shapiro Francia. <br /> W Statistic = 0.9753 <br /> DO [50 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 evidenc <br /> error exists. <br /> :stituent: Specific Conductance [Field] (umhos/cm) Facility: French Camp LF Data File: FRENCHIN <br /> Date: 3/19/09, 11:28 AM Client: French Camp LF View: Batch <br /> 4P 4P / PERS T & IATES, INC- <br />