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<br />a <br />N <br />U <br />Table A-13 <br />Canadian Strip Mine Reclaimed Area -Phases I, II and III <br />1998 Production Data <br /> <br />Plot # Per. Grass <br />Wet Wt. Per. Forb <br />Wet Wt. Ann. Forb <br />Wet Wt. Total <br />Wet Wt. Per. Grass <br />D Wt. Ann. Grass <br />Dr Wt. Per. Forb <br />Dr Wt. Ann. Forb <br />D Wt. Total <br />D Wt. Density <br />lbs./Acre <br />1 77.6 7.2 N/A 84.8 43 N/A 2 N/A 43 766 <br />2 78.6 N/A N/A 78.6 46.1 N/A N/A N/A 46.1 821 <br />3 86 N/A N/A 86 50.4 N/A N/A N/A 50.4 897 <br />4 60.9 N/A N/A 60.9 43.8 N/A N/A N/A 43.8 780 <br />5 34.3 22.6 N/A 56.9 21.3 N/A 8.1 N/A 29.4 524 <br />6 69.7 N/A N/A 69.7 44 N/A N/A N/A 44 783 <br />7 20.1 82.5 N/A 102.6 29.4 N/A 12.4 N/A 41.8 744 <br />8 109.9 12.8 N/A 122.7 48.5 N/A 3.9 N/A 52.4 933 <br />9 45.2 N/A N!A 45.2 32.2 N/A N/A N/A 32.2 573 <br />10 73 N/A N/A 73 44.4 N/A N/A N/A 44.4 791 <br />11 89.1 N/A 6 89.1 49.9 N/A N/A 1.5 51.4 915 <br />1'2 84.9 3.7 N/A 88.6 50.4 N/A 1.2 N/A 51.6 919 <br />13 20 46 N/A 66 10.6 N/A 21.4 N/A 32 570 <br />14 52 14.9 N/A 66.9 34.5 N/A 7.9 N/A 42.4 755 <br />15 39 54.3 N/A 93.3 25.8 N/A 22.8 N/A 48.6 865 <br />Dry Wt. Mean = 43.566667 /.5m^2 <br />Number of Plots = 15 <br />t-value at (n-1) = 1.345 <br />t^2 = 1.809025 <br />Sample Mean = 775.763355 <br />Standard Deviation = 130.484866 <br />Variance = 17026.3004 <br />Minimum # Needed = 5.12 <br />Thus: Sample size is adequate <br />