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1 <br />2006 Edna Mine Vegetation Sampling Report <br />Table 2-3: Statistical Summary for Oak Mountain Shrub Reference Area <br />' The Pittsburg & Midway Coal Mining Co <br />Edna Mine - Bond Release Sampling Yr 2 of 2 <br />' Statistical Summary <br />Parameter Statistic Oak Mountain Shrub Reference Area <br /> <br /> n 20 <br /> Regulator nmi„ 15 <br />Herbaceous Vegetation Cover Mean % 24.2 <br /> Var 65.3 <br /> Std <br />nmin t-stat 8.1 <br />19.8 <br /> Sample Ade uac Yes <br /> <br /> n 20 <br /> Regulatory nmi,, 15 <br />Total Ground Cover Mean % 76.3 <br /> Var 188.1 <br /> Std 13.7 <br /> nmin t-stat 5.7 <br /> Sample Adequacy Yes <br /> <br /> n 20 <br /> Regulatory n,,j, 15 <br />Herbaceous Production -Mean _(9/M2) 64.8 <br /> Mean Ibs/ac 578.0 <br /> Var 104.1 <br /> Std 10.2 <br /> nmin t-stat 4.4 <br /> Sample Adequacy Yes <br />Habitat Management. Inc. 6 October 19. 2006