Comparison of Mechanically Drawn Samples With Cut Samples for Evaluating Cotton Quality (Classic Reprint) - Hardcover

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Excerpt from Comparison of Mechanically Drawn Samples With Cut Samples for Evaluating Cotton Quality<br/><br/>Average differences often were greater for groups of bales of particular types or from particular origins; however, differences between types of samples were not consistent, varying among groups both in extent and direction. This lack of con sistency re?ects variations among different types of cotton, among cut samples from different types of bales, among classers in their relative evaluation of different types of samples, or in other factors. For example, the two types of samples were assigned identical grades for about three-fourths of the gin ?at bales from Texas and California, and for about half of the gin standard bales. Mechanical samples were assigned higher grades for about two-thirds of the remaining Texas bales, lower grades for about four-fifths of the remaining California ?at bales, and higher grades for about four-fifths of the remaining gin standard bales. In terms of average grade, the differences were statistically significant for each of the three groups of bales, whereas differences in average staple length were not significant.

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