A magazine includes a report on the energy costs per year for 32-inch liquid crystal display (LCD) televisions. The article states that 14 randomly selected 32-inch LCD televisions have a sample standard deviation of $3.63. Assume the sample is taken from a normally distributed population. Construct 98% confidence intervals for (a) the population variance o² and (b) the population.standard deviation o. Interpret the results. *** (a) The confidence interval for the population variance is () (Round to two decimal places as needed.)

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
100%
A magazine includes a report on the energy costs per year for 32-inch liquid crystal display (LCD) televisions. The
article states that 14 randomly selected 32-inch LCD televisions have a sample standard deviation of $3.63. Assume
the sample is taken from a normally distributed population. Construct 98% confidence intervals for (a) the population
variance o² and (b) the population standard deviation o. Interpret the results.
(
(a) The confidence interval for the population variance is
(Round to two decimal places as needed.)
h
Transcribed Image Text:A magazine includes a report on the energy costs per year for 32-inch liquid crystal display (LCD) televisions. The article states that 14 randomly selected 32-inch LCD televisions have a sample standard deviation of $3.63. Assume the sample is taken from a normally distributed population. Construct 98% confidence intervals for (a) the population variance o² and (b) the population standard deviation o. Interpret the results. ( (a) The confidence interval for the population variance is (Round to two decimal places as needed.) h
Expert Solution
steps

Step by step

Solved in 5 steps with 6 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