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Please help me with this statistics question! I'm not sure how to get the answer. Use a t -distribution to find a confidence interval for

Please help me with this statistics question! I'm not sure how to get the answer.

Use a t-distribution to find a confidence interval for the difference in means ?d=?1-?2

using the relevant sample results from paired data. Assume the results come from random samples from populations that are approximately normally distributed, and that differences are computed using d=x1-x2

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