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v.8.7.009. EPA <br /> EPA OUTLIER TEST <br /> - 1 <br /> 80 <br /> n = 21. Mean= 122.7, <br /> after outlier removal <br /> 89.33. <br /> Std. Dev. = 157.6, after <br /> outlier removal 39.13. <br /> 60 Critical Tn = 2.58 , <br /> after outlier removal <br /> 2.557. <br /> co Statistical outliers <br /> CD <br /> are shown as solid squares. <br /> 00 <br /> 0 Data, after outlier removal, <br /> were found to be normally <br /> distributed. <br /> co <br /> Normality test used: <br /> Shapiro Wilk. <br /> W Statistic = 0.9185 <br /> 20 W Quantile = 0.905 <br /> 0 <br /> Apr 1995 Mar 2002 Feb 2009 <br /> Note: EPA guidance directs that statistical outliers should notbe removed or altered unless independent evidenc <br /> error exists. <br /> Constituent: Bicarbonate as CaCO3 (mg/L) Facility: French Camp LF Data File: FRENCHIN <br /> Date: 3/19/09, 11:27 AM Client: French Camp LF View: Batch <br /> ERST & ASSOCIATES, INC <br />