A survey was conducted of visitors to the Jakarta Fair. For this reason, two groups of samples were taken. The first sample was 500 visitors for women and when they were asked 325 people said they were satisfied with the exhibition at the Jakarta Fair, while the second sample consisted of 700 visitors for gentlemen and 300 of them said they were not satisfied with the exhibition at the Jakarta Fair. the Jakarta Fair. Make a 95% confidence interval to estimate how much the difference between the two populations of visitors who are satisfied with the exhibition at the Jakarta Fair?
A survey was conducted of visitors to the Jakarta Fair. For this reason, two groups of samples were taken. The first sample was 500 visitors for women and when they were asked 325 people said they were satisfied with the exhibition at the Jakarta Fair, while the second sample consisted of 700 visitors for gentlemen and 300 of them said they were not satisfied with the exhibition at the Jakarta Fair. the Jakarta Fair. Make a 95% confidence interval to estimate how much the difference between the two populations of visitors who are satisfied with the exhibition at the Jakarta Fair?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
A survey was conducted of visitors to the Jakarta Fair. For this reason, two groups of samples were taken. The first sample was 500 visitors for women and when they were asked 325 people said they were satisfied with the exhibition at the Jakarta Fair, while the second sample consisted of 700 visitors for gentlemen and 300 of them said they were not satisfied with the exhibition at the Jakarta Fair. the Jakarta Fair. Make a 95% confidence interval to estimate how much the difference between the two populations of visitors who are satisfied with the exhibition at the Jakarta Fair?
Expert Solution
Step 1
There are totally 500 visitors for women in which 325 people said they were satisfied with the exhibition at the Jakarta Fair, and there are totally 700 visitors for gentlemen in which 300 of them said they were not satisfied with the exhibition at the Jakarta Fair. the Jakarta Fair.
The proportion of women said they were satisfied with the exhibition at the Jakarta Fair is,
The proportion of men said they were satisfied with the exhibition at the Jakarta Fair is,
Computation of critical value:
The critical value of z-distribution can be obtained using the excel formula “=NORM.S.INV (0.975)”. The critical value is 1.96.
Step by step
Solved in 2 steps
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman