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Use the t-distribution to find a confidence interval for a difference in means μ1-μ2 given the...

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.
A 90% confidence interval for μ1-μ2 using the sample results x¯1=537, s1=103, n1=300 and x¯2=434, s2=94, n2=200
Best estimate =?

Margin of error =?

Confidence interval: ____ to _____

Math   Statistics-And-Probability   
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