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Construct a confidence interval for ud, the mean of the differences d for the population of paired data. Assume that the population of paired differences

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Construct a confidence interval for ud, the mean of the differences d for the population of paired data. Assume that the population of paired differences is normally distributed. If a = 3.125, Sd = 2.911, and n = 8, determine a 99 percent confidence interval for ud. 1.851

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