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~ 1~ <br /> TABLE A-8 (Cont.) <br /> TWENTYMILE COAL COMPANY <br /> MINE 1 RECLAIMED AREA <br /> 2000 HERBACEOUS PRODUCTION DATA (0.5m2 Plots) <br />Transact Y Plot a PG PG AG AG PF PF UPF UPF AF AF Attalla Attalla Bienn. Forb1 Blenn. Forb TOTAL TOTAL DENSITY <br />Wet WI. ID WI. Wet Wt. ( ID Wt.l ~ Wel Wt.l ~1 .~D WL (~ Wet WI. .) ID Wt. .) Wet Wt. ID Wt.l Wet Wt. ( :0 Wt. 191 Wet WI. ( :D WL (~ Wet Wt. D WI. Lbs/Acre) <br />]] 1 66.1; 32.8 198.4; 747 264.5 1075 <br /> 2 160 5; 96.7 153.2; 46.4 _ <br />313 7 143. <br />1 <br /> 7 1429; 68.5 _ 276.41 _ <br />031 _ <br />419.3 _ <br />159 <br />Average 12].187: 45.]33 0.000; 0.000 117300{ 40.]47 0.000; 0.000 0.000, 0.000 D2.1]]I ]1.0]3 0.000; 0.000 ]]2.500 1]8.7]] 2431.722 <br />74 1 129 6; 58.8 B 6• 2.4 40.6; 11 <br />- <br />~ 178.6 <br />~ - - _ 72.2 <br />2 13.2; <br />6.2 24.3 6 _ 707;__ ~ _167 _ ~ - -- _108.2 _30.9 <br />] _ <br />2626; 136 262.6 13fi <br />Average 135.17]; 87.000 0.000; 0.000 10.D87j ].447 0.000; 0.000 ]7.100; D2]] 0.000; 0.000 0.000; 0.000 187300 70.700 7419.166 <br />]5 1 122 Ti 751 1D01i <br />20.4 __ 222.8 _ 955 <br />2 102 <br />4] <br />61 <br />4 _ _ _ _ _ _ _ _ _ 1024 61.4 <br />] _ <br />. <br />. <br />305 51 155.1 _ _ __ _ _ __I_ _ _ _ _ <br />305.5 _ 155.1 <br />average 17e.ee7; D72o4 0.000; D.ooo o.oa41 0.400 a.o4o1 0.000 33.]47? e.eo4 0.0001 0.000 o.ODO; 0.000 21D2]3 104.004 1851.860 <br />]6 1 20331 678 2831 8.2 _ _ ___ _ __ 2.]: _ 0._1 __2343 Bfi1 <br />2 1783 e7 <br />B _ __ _ 21.9: 7B 2002 85.5 <br />. <br />3 543 207.4 _ .. _____ -1 -. -_ 731. __ O5 . -_550.3 _ _ <br />2078 <br />Avarape ]041001 127.700 0.000: 0.000 D.4]]~ 2.17J 0.0001 0.000 0.000 0.000 7.]00 2.53] 7A3]' 0200 3]02!7 1]].147 2371.212 <br />Sample Mean(Dry Wt.)= 111.00 Sample Mean (Wet Wt.)= 289.61 <br />Standard Deviation = 39.0417 Standard Deviation = 133.01 <br />Variance = 1524.25 Variance = 17690.58 <br />Number of Plots = 36 Number of Plots = 36 <br />t-value at (n-1) = 1.306 t-value at (n-1) = 1.306 <br />t^2 = 1.70564 t^2 = 1.705636 <br />Minimum # Needed = 21.10 Minimum # Needed = 35.98 <br />Thus: tianlple sire is adeyuate Thus: Sample size is adequate <br />Sam le Mean for Production Densi Lbs.lAcre = 1976.50 <br />