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 95% confidence interval for μ1-μ2 using the sample results x̅1 = 75.5, s1=11.5, n1=35 and x̅2=69.3, s2=7.0, n2=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 =___________ Margin of error =______________ Confidence interval :_____________ to _______________
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A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
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 95% confidence interval for μ1-μ2 using the sample results x̅1 = 75.5, s1=11.5, n1=35 and x̅2=69.3, s2=7.0, n2=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 =___________
Margin of error =______________
Confidence interval :_____________ to _______________
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