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R <br /> Reference Area 4 Cover Statistical Summary <br /> T1 T2 Sample mean=69% <br /> 72 66 Std. dev. =4.2 <br /> n=2 <br /> 80% C.I. = 69 +/-4.1 nmin(alpha=.2, 2 tail, 1 df)= 3.6 <br /> Noxious Species Cover <br /> T1 T2 Sample mean=41% <br /> 40 42 Std. dev. = 1.4 <br /> n=2 <br /> nmin(alpha=.2, 2 tail, 1 d.f) = 1.2 <br /> 80% C.I. =41.4 =/- 1.4 <br />