A 99 confidence interval for 1 2 using the sample results x 1 501, s 1 115, n 1 400 and x 2 469, s 2 96, n 2 200 Use the t distribution to find a confidence interval for a difference in means 1 2 given the relevant sample results Give the best estimate for 1 2 , the margin of error, and the confidence interval Assume the results come from random samples from populations that are approximately normally distributed

Question: A 99% confidence interval for 1 2 using the sample results x 1 = 501, s 1 = 115, n 1 = 400 and

A 99% confidence interval for μ1 − μ2 using the sample results x̅₁ = 501, s₁ = 115, n₁ = 400 and x̅₂ = 469, s₂ = 96, n₂ = 200

Use the t-distribution to find a confidence interval for a difference in means μ₁ − μ₂ given the relevant sample results. Give the best estimate for μ₁ − μ₂, the margin of error, and the confidence interval. Assume the results come from random samples from populations that are approximately normally distributed.

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