Give an estimate of the total volume {in cubic feet] of trees marked for sale using regression estimation and SEE estimation, and place a limit on the estimation error in both cases. N = 2513 n = 12 Total basal area of the 250 trees :a- TX = ?5 square 'Feet Tree Tree sampled basal area Volume, y sampled basal VDlUlTIE. 3: areas: 1' 1 0.3 6 I" 0.6 12 2 [1.5 9 B 0.5 Q 3 [1.4 ? 9 0.3 20 4 [1.9 19 1D 0.4 '3 5 0.? 15 11 0.8 13 E [1.2 5 12 [1.6 13