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<br />Table 2.04.10(2). Sandsa~e density--area to be maned <br />Date o` sanplir.C: ;"?e 1; .' ,531 <br />Obser•rer: Hvder and Y.ouston <br />.attribute: Sandsa~e densit•{, }:unber cc^ 1f100th acre Data transformed <br />to ~ for znalvsis, Twenty sanples ta:.en or. Valent Sand and <br />fi°teen on Cs -cod Said--Dzta Wooled <br />Sample sire (n) ............................;................ <br />;'.ean (:c) ............................................. ... 4.20 <br />(x.29 squared = 18.E=0 per plot, l,~W per acre) <br />Sua of squares (S x2) ........................................ ~2.~4 <br />`lariance o` sar..ole (sx2) .................................... 2.1L <br />Stn rd.=:~ ~rvia:ion (~•~) ........................ ....... 1.46 <br />(1.46 souar~d = 2.1.j per plot, 2'_j pea zcre) <br />Standzrd error (s ;c) ........................................ 0.25 <br />_. <br />;oe:=isrent of variation ~V ............................... 7',~ <br />Cenfidence interval at go .: .................................. ~ 0,~~ <br />(note: this is lc;. o; the aea^) <br />Con__cence internal ai 9D .:................................., t 0,42 <br />(note: this is 10.: o` the mean) <br />Confidence interval at 80 :: .................................. t o•jj <br />(note: this is B;:'off the mean) <br /> <br />-- <br />-62- <br />