Researchers have obtained and tested samples of four different brands of nylon rope that are advertised as having a breaking strength of 100 pounds. Given the breaking strengths (in pounds) shown here, use the 0.025 level in comparing the brands. (Use data file XR12096.)

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Brand A 103.1 108.9 106.7 114.3 113.3 110.5 Brand B Brand C Brand D 118.0 115.8 114.2 109.0 109.8 110.1 118.3 116.7 113.0 109.7 108.6 114.7 113.8 110.6