A sample of size n= 96 is drawn from a normal population whose standard deviation is o = 7.8. The sample mean is x = 49.32. Part 1 of 2 (a) Construct a 99% confidence interval for u. Round the answer to at least two decimal places. A 99% confidence interval for the mean is LE Part 2 of 2 (b) If the population were not approximately normal, would the confidence interval constructed in part (a) be valid? Explain.

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 sample of size n= 96 is drawn from a normal population whose standard deviation is o = 7.8. The sample mean is x = 49.32.
Part 1 of 2
(a) Construct
a 99% confidence interval for u. Round the answer to at least two decimal places.
A 99% confidence interval for the mean is
O <u< O
do
Part 2 of 2
(b) If the population were not approximately normal, would the confidence interval constructed in part (a) be valid? Explain.
be valid since the sample
The confidence interval constructed in part (a) |(Choose one) ▼
would
Size (Choose one) ▼ | large.
would not
Transcribed Image Text:A sample of size n= 96 is drawn from a normal population whose standard deviation is o = 7.8. The sample mean is x = 49.32. Part 1 of 2 (a) Construct a 99% confidence interval for u. Round the answer to at least two decimal places. A 99% confidence interval for the mean is O <u< O do Part 2 of 2 (b) If the population were not approximately normal, would the confidence interval constructed in part (a) be valid? Explain. be valid since the sample The confidence interval constructed in part (a) |(Choose one) ▼ would Size (Choose one) ▼ | large. would not
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 1 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