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2006 Edna Mine Vegetation Sampling Report <br />Table 5-1: Statistical Summary for West Ridge & Moffat Non-Topsoiled BRU <br />The Pittsburg & Midway Coal Mining Co <br />Edna Mine - Bond Release Sampling Yr 2 of 2 <br />Statistical Summary <br /> <br />Parameter <br />Statistic West Ridge & Moffat BRU: <br />Non-To soiled <br /> <br /> n 30 <br /> Regulatory nmin 15 <br />Total Vegetation Cover Mean % 30.5 <br /> Var 150.5 <br /> Std 12.3 <br /> nmin t-stat 28.0 <br /> Sample Adequacy Yes <br />n <br />Regulatory nmin <br />Total Ground Cover Mean % <br />Var <br />Std <br />nmin t-stat <br />Sample Adequacy 30 <br />15 <br />63.1 <br />177.2 <br />13.3 <br />7.7 <br />Yes <br />Habitat Management, Inc. 53 October 19, 2006