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Assume that the paired data came from a population that is normally distributed. Using a 0.05...

Assume that the paired data came from a population that is normally distributed. Using a 0.05 significance level and d=x-y find d overbar, sd, the t-test statistic, and the critical values to test the claim that ud=0

x 16 15 3 3 9 20 15 11

y 13 13 5 5 6 15 13 8

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