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Two types of flares are tested for their burning times (in minutes) and sample results are given below. Brand X Brand Y n = 35

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Two types of flares are tested for their burning times (in minutes) and sample results are given below. Brand X Brand Y n = 35 n = 40 X = 19.4 X = 15.1 X - 1.4 5 -0.8 Construct a 95% confidence interval for the differences my - my based on the sample data. O A. 3.5

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