All. In a wirewonn stnvey the number of wirewolms per acre is to be estimated with a limit of relative error of 30%! at the 95% probability level! in any eld in which wirewonn density exceeds 200.000 per acre in the top 5 in. of soil. The sampling tool measures 9x 9x 5 in. deep. Assuming that the number of wirewoims in a single sample follows a distribution slightly more variable than the Poisson. we take S 2 = 1.2)?\" What size of a simple random sample is needed\"? (1 acre = 43.560 sq ft.)