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t _Q x <br />` S- <br />x <br />Where: <br />x =Bond Release Block Sample Mean <br />Q = 90°1° of Standard <br />Ss =Standard error of mean [ s / ~] <br />S =Sample standard deviation <br />n =Sample size <br />tr = Calculated t value <br />tt = Table t value <br />The null hypothesis being tested was that the bond release block mean (µ) was greater than or <br />equal to 90% of the standard, stated as H°: µ >_ Q. If t< was less than or equal to the 1-tailed t <br />table value for alpha error probability of 0.10, at (n-1) degrees of freedom (infinite degrees of <br />freedom may be used if n>30), then Ho was not rejected, and revegetation was deemed <br />successful for the parameter tested. <br />If: Sample adequacy for herbaceous cover has not been achieved in Phase II Bond Release <br />Area and a total of 30 or more samples have been taken, .and the means for total allowable <br />herbaceous foliar cover in the Phase II Bond Release Area exceed 90% of the reference area- <br />derived standard, then the hypothesis of reclamation success is tested under the conditions of a <br />"reverse null" approach using a parametric test of the "reverse null" hypothesis. This would be <br />conducted using the following expression (CDMG rules, 4.15.11 (2)(c)): <br />_ xQ <br />t~ S- <br />Where: <br />I • <br />x =Bond Release Block Sample Mean <br />Q = 90% of Standard <br />S_ =Standard error of mean [s/~] <br />S =Sample standard deviation <br />n =Sample size <br />4 = Calculated t value <br />Q = Table t value <br />6 <br />