Cotton Weight Percent Observations 15 7 7 15 11 9 20 12 17 12 18 18 25 14 19 19 18 18 30 19 25 22 19 23 35 7 10 11 15 11 (a) Is there evidence to support the claim that cotton con- tent affects the mean tensile strength? Use a = 0.05. (b) Use the Fisher LSD method to make comparisons between the pairs of means. What conclusions can you

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