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Unformatted text preview: EXST7015 Daily Design 14 Carefully read the description of the experiment below. Be prepared to answer the questions that follow the design description as a class quiz. ABSTRACT: Cotton producers are looking for ways to economize on cottonseed when it comes to planting, but without sacrificing yields. A study was conducted on a producers field in Claiborne County 3 miles east of Port Gibson on upland loamy soil to evaluate planting population densities. Cotton was planted on 4 raised beds which were rolled to provide a smooth planting surface. On each of the 4 raised beds, seeds were planted on 10 plots of 4 rows per plot. Seeds were planted in the 10 plots at densities of 2, 2.5, 3, 3.5, 4, 4.2, 4.5, 5, 5.5 and 6 seeds/ft of row. Densities were randomly assigned to the 10 plots in each of the 4 beds (40 plots in all) such that each density occurred once in each bed. Cotton was then picked in mid-October with a picker adapted for picking each 4-row plots as a single sample. The variable of interest was lint yields, which picker adapted for picking each 4-row plots as a single sample....
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This note was uploaded on 12/29/2011 for the course EXST 7015 taught by Professor Wang,j during the Fall '08 term at LSU.
- Fall '08