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Statistical Metliods <br />Sampling was conducted at randomly located sites. Random map points for sampling locations <br />were generated using a random point generating script in ESRI ArcView 9.2 software. These <br />sample points v~iere located in the field using topographic maps. Cover and woody plant density <br />transects were randomly oriented; production samples were located randomly behind the transect <br />origin. At each cover/woody plant density sampling location, the slope, expressed as a percent, <br />and aspect of tf'ie site, in degrees not corrected for magnetic declination, were determined and <br />recorded, as w~~s the orientation of the transect. <br />Assessment of Reclamation Adequacy <br />GENERAL <br />No formal (statistical) hypothesis testing was undertaken for this interim vegetation monitoring. <br />SAMPLE ADEO~UACY DETERMINATION <br />Sample adequ~icy was evaluated based on total live foliar cover by vascular plants using the <br />following expre:~sion: <br />tZSZ <br />nm ~dx~ <br />where: <br />nm =minimum sample size <br />s2 =Sample variance (n-1 degrees of freedom) <br />d =Precision (0.10 for cover and production; 0.15 for <br />woody plant density) <br />x =Sample arithmetic mean <br />t =The (a=.10) t-table value fora 1 tail t-test, n-1 degrees of <br />freedom (infinite degrees of freedom may be used if <br />n>30) <br />n =Sample size <br />• a <br />