Laserfiche WebLink
2006 Edna Mine Vegetation Sampling Report <br />Table 3-2: Herbaceous Cover & Production t-Test for West Ridge Topsoiled BRU <br />The Pittsburg & Midway Coal Mining Co <br />Edna Mine - Bond Release Sampling Yr 2 of 2 <br />Herbaceous Vegetation Cover t-Test <br />West Ridge Topsoil VEGETATION PARAMETERS <br /> Herbaceous Vegetation <br />Cover Herbaceous Production <br />Mean 40.0 149.6 <br />Variance 157.9 3,230.0 <br />Standard Deviation 12.6 56.8 <br />Standard Error 3.0 11.4 <br />n 18.0 250 <br />Colorado: t-Test <br />t -6.177 -9.866 <br />t-test statistic 1.333 1.318 <br />Reclamation Pass Yes Yes <br />Habitat Management, Inc. 27 October 19, 2006