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2.4 STATISTICAL ANALYSIS <br />Statistical analysis for the revegetation success criterion of total live vegetation cover is <br />required if the value of the sample mean from the reclaimed area is less than 90 percent of the <br />value of the final revegetation success criterion for total vegetation cover. The 2020 pre- <br />SMCRA reclaimed area sample mean for total live vegetation cover was greater than the <br />corresponding revegetation success criterion; therefore no statistical analysis was required. <br />2.5 SPECIES IDENTIFICATION AND VERIFICATION <br />Species identification was accomplished in the field through the use of plant identification keys <br />(Harrington, 1954, Whitson, 1987; Weber, 1990; Zimdahl, 1990, Stubbendieck, el al, 1995). <br />In cases where plant identification was inconclusive in the field, voucher specimens were <br />pressed for lab identification, and verified by Mr. Tim Hogan and Ms. Dina Clark of the <br />University of Colorado, Boulder Herbarium. <br />Oxbow Mining, LLC Elk Creek Mine Page 5 <br />2020 Phase III Bond Kelea5e Pre-5MCKA Vegetation Report <br />