Use the t-distribution to find a confidence interval for a difference in means u - Hz given the relevant sample results. Give the best estimate for uj - u2, 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 u - Hz using the sample results I 518, s1 118, n1 = 360 and 2 = 469, $2 = 93, n2 = 200 %3D 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 = 49 Margin of error = 17.74 Confidence interval: 21 36 to る674

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Use the t-distribution to find a confidence interval for a difference in means \( \mu_1 - \mu_2 \) given the relevant sample results. Give the best estimate for \( \mu_1 - \mu_2 \), 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 \( \mu_1 - \mu_2 \) using the sample results \( \bar{x}_1 = 518, \, s_1 = 118, \, n_1 = 360 \) and \( \bar{x}_2 = 469, \, s_2 = 93, \, n_2 = 200 \).

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 = 49
- Margin of error = 17.74
- Confidence interval: 31.26 to 66.74
Transcribed Image Text:Use the t-distribution to find a confidence interval for a difference in means \( \mu_1 - \mu_2 \) given the relevant sample results. Give the best estimate for \( \mu_1 - \mu_2 \), 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 \( \mu_1 - \mu_2 \) using the sample results \( \bar{x}_1 = 518, \, s_1 = 118, \, n_1 = 360 \) and \( \bar{x}_2 = 469, \, s_2 = 93, \, n_2 = 200 \). 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 = 49 - Margin of error = 17.74 - Confidence interval: 31.26 to 66.74
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