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Sutey Reference Area #2 <br />Noxious Weed Density Sample Mean; 1998 -2001 <br />Noxious Weeds <br />per square meter 10.3 4.9 1.8 2.6 * <br />*From 1998 to 2001, noxious weed density sample mean <br />declined by approximately 75 %; true mean declined by at least <br />45 %, at 95% confidence level. The increase from 2000 to <br />2001 was non - significant, at the 95% confidence level. <br />a) <br />a 12 <br />Q 10 <br />m <br />• 8 <br />a E 6 <br />L <br />m 4 <br />.0 2 <br />E <br />z <br />z <br />Figure 4 - Sutey Reference #2 Noxious Weed <br />Density Sample Mean <br />1998 1999 2000 2001 <br />— Noxious Weeds <br />per square meter <br />1998 1999 2000 2001 <br />