Use the t-distribution to find a confidence interval for a difference in means μ1−μ2μ1-μ2 given the relevant sample results. Give the best estimate for μ1−μ2μ1-μ2, the margin of error, and the confidence interval. Assume the results come from random samples from populations that are approximately normally distributed. A 95% confidence interval for μ1−μ2μ1-μ2 using the sample results x⎯⎯1=76.7x¯1=76.7, s1=11.8s1=11.8, n1=25n1=25 and x⎯⎯2=61.9x¯2=61.9, s2=7.4s2=7.4, n2=20n2=20 Enter the exact answer for the best estimate and round your answers for the margin of error and the confidence interval to two decimal places. Best estimate = Enter your answer; Best estimate Margin of error = Enter your answer; Margin of error Confidence interval : Enter your answer; Confidence interval, value 1 to Enter your answer; Confidence interval, value 2

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Use the t-distribution to find a confidence interval for a difference in means μ1−μ2μ1-μ2 given the relevant sample results. Give the best estimate for μ1−μ2μ1-μ2, the margin of error, and the confidence interval. Assume the results come from random samples from populations that are approximately normally distributed.

A 95% confidence interval for μ1−μ2μ1-μ2 using the sample results x⎯⎯1=76.7x¯1=76.7, s1=11.8s1=11.8, n1=25n1=25 and x⎯⎯2=61.9x¯2=61.9, s2=7.4s2=7.4, n2=20n2=20

Enter the exact answer for the best estimate and round your answers for the margin of error and the confidence interval to two decimal places.

Best estimate = Enter your answer; Best estimate

Margin of error = Enter your answer; Margin of error

Confidence interval : Enter your answer; Confidence interval, value 1 to Enter your answer; Confidence interval, value 2

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