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2006 Edna Mine Vegetation Sampling Report <br />Table 3-1: Statistical Summary for West Ridge Topsoiled BRU <br />The Pittsburg & Midway Coal Mining Co <br />Edna Mine - Bond Release Sampling Yr 2 of 2 <br />Statistical Summary <br />Parameter Statistic West Ridge Topsoil <br /> n 18 <br /> Regulatory nmin 15 <br />Herbaceous Vegetation Cover Mean % 40.0 <br /> Var 157.9 <br /> Std 12.6 <br /> nmin t-stat 17.5 <br /> Sample Ade uac Yes <br /> <br /> <br /> n 18 <br /> Regulatory n 5 <br />Total Ground Cover Mean % 84.3 <br /> Var 136.3 <br /> Std 11.7 <br /> nmin t `at 3.4 <br /> Sam I? AdF :sac, Yes <br /> <br /> n 25 <br />< _ <br />min 15 <br />+'- " <br />P <br />d _ <br />Mean mz) 149.6 <br />ur <br />Herbaceous <br />ro <br />,- `lean Ibslac 1,334.9 <br /> <: 3,230.0 <br /> Std 56.8 <br /> nmin t-stat 25.0 <br /> Sample Adequac y Yes <br />Habitat Management, Inc. 26 October 19, 2006