A 90% confidence interval for using the sample results = 127.2, s = 57.2, and n <= 50 Round your answer for the point estimate to one decimal place, and your answers for the margin of error and the confidence interval to two decimal places. point estimate- 127.2 margin of error 114 The 90% confidence interval is -126.06 to 128.34

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
A 90% confidence interval for using the sample results = 127.2, s = 57.2, and n = 50
Round your answer for the point estimate to one decimal place, and your answers for the margin of error and the
confidence interval to two decimal places.
point estimate= 127.2
margin of error = 1.14
The 90% confidence interval is -126.06
to
128.34
Transcribed Image Text:A 90% confidence interval for using the sample results = 127.2, s = 57.2, and n = 50 Round your answer for the point estimate to one decimal place, and your answers for the margin of error and the confidence interval to two decimal places. point estimate= 127.2 margin of error = 1.14 The 90% confidence interval is -126.06 to 128.34
Use the t-distribution to find a confidence interval for a mean given the relevant sample results. Give the best point
estimate for u. the margin of error, and the confidence interval. Assume the results come from a random sample from a
population that is approximately normally distributed.
A 99% confidence interval for using the sample results = 82.3, s = 32.3, and n = 15
Round your answer for the point estimate to one decimal place, and your answers for the margin of error and the
confidence interval to two decimal places.
point estimate i 82
margin of error=
2.58
The 99% confidence interval is
60.82
to
103.78
Transcribed Image Text:Use the t-distribution to find a confidence interval for a mean given the relevant sample results. Give the best point estimate for u. the margin of error, and the confidence interval. Assume the results come from a random sample from a population that is approximately normally distributed. A 99% confidence interval for using the sample results = 82.3, s = 32.3, and n = 15 Round your answer for the point estimate to one decimal place, and your answers for the margin of error and the confidence interval to two decimal places. point estimate i 82 margin of error= 2.58 The 99% confidence interval is 60.82 to 103.78
Expert Solution
steps

Step by step

Solved in 3 steps with 7 images

Blurred answer
Similar questions
  • SEE MORE 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