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Since critical ttable = 0.849 (one -tailed, alpha = 0.2, 52 do and tcd, of 0.775 is not greater than this <br />critical value, reclamation success for Phase III shrub concentration area density in 2012 is NOT <br />demonstrated using this parametric reverse -null t-test. <br />Since sample adequacy was not achieved in the woody plant density concentration area in 2012, <br />and revegetation success for woody plant density was NOT demonstrated using a reverse -null t- <br />test, an alternate non -parametric reverse null approach based on a Quantile Test (Gilbert 1987, <br />Conover 1980) was used as allowed in CDMG 2005 revised rule, 4.15.11 (3)(a). The test equation: <br />1 <br />L=p(n+1)— Z[np(1—p)]Z <br />Table 6. Reverse Null Approach Based on the Median for Evaluating Success in the 2012 <br />Woody Plant Density Concentration Area, Phase III BRB PSCM-2. <br />Vegetation <br />Parameter <br />Values <br />Reverse Null Approach <br />Lower 80% <br />70 % of <br />Mean <br />N <br />conf limit <br />Standard <br />Pass? Yes / No <br />2012 BRB PSCM-2 <br />Woody Plant <br />2068.0 <br />53 <br />1654.0 <br />1400 <br />Yes <br />Concentration Area <br />Density <br />Since the lower 80% confidence limit is greater than 70% of the woody plant density <br />concentration area standard of 2000 stems per acre (1400), reclamation success for concentration <br />area woody plant density for Phase III in BRB PSCM-2 is demonstrated in 2012. Please refer to <br />text pages 21 and 22 and calculations in Table J-3 (Appendix J) in the vegetation success <br />evaluation report contained in Attachment D for further details and discussion. Also note that <br />the demonstrated woody plant density concentration area occupies over 10 percent of BRB <br />PSCM-2, well exceeding the minimum requirement of 5 percent. <br />2014 Woody Plant Density Success Evaluation <br />The background density of 509.9 stems per acre observed in the 2014 BRB PSCM-2 Phase III <br />bond release area exceeded the 180 stems per acre performance standard. The mean of 2513.1 <br />stems per acre observed in the concentration areas also well exceeds the 1800 stems per acre <br />performance standard. The combined total aerial extent of woody density concentration areas <br />