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

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
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
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman