Laserfiche WebLink
<br />• <br />'~ <br />Sample Adequacy. Enough samples were taken in order to detect <br />a 10 percent difference with 90 percent confidence using the <br />following formula: <br />t2s2 <br />W(ade) <br />x2d2 <br />where t = a value from a t-table <br />sZ = sample variance <br />x = sample mean <br />d = detection level. <br />Sample adequacy was attained for both cover and production in the <br />affected and reference areas (Table 5). <br />