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2006 Edna Mine Vegetation Sampling Report <br />Table 5-2: Vegetation Cover t-Test 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 />Total Vegetation Cover t-Test <br />West Ridge & Moffat BRU: <br />Non-Topsoiled VEGETATION <br />PARAMETERS <br /> Total Vegetation Cover <br />Mean 30.5 <br />Variance 150.5 <br />Standard Deviation 12.3 <br />Standard Error 2.2 <br />n 30.0 <br />Colorado: t-Test <br />t 5.283 <br />t-test statistic 1.313 <br />Reclamation Pass No <br />Habitat Management, Inc. 54 October 19, 2006