After interviewing 30 third-year students, it is found that the sample mean of their happiness index = 72, sample variance = 37. The 99% confidence interval of the population mean is therefore given by (choose the best answer below: a) Pr(66.3124≤μ≤78.4852)=99% b) Pr(73≤μ≤77)=99% c) Pr(68.11≤μ≤76.52)=99% d) D. Pr(69≤μ≤75)=99% e)

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

After interviewing 30 third-year students, it is found that the sample mean of their happiness index = 72, sample variance = 37. The 99% confidence interval of the population mean is therefore given by (choose the best answer below:

a) Pr(66.3124≤μ≤78.4852)=99%

b) Pr(73≤μ≤77)=99%

c) Pr(68.11≤μ≤76.52)=99%

d) D. Pr(69≤μ≤75)=99%

e) 

Expert Solution
steps

Step by step

Solved in 2 steps

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