Part B Suppose you have a sample of 400 people. You asked each of the 400 people whether they like or dislike a particular product. 320 people said that they like the product. a) What is a 95% confidence interval for the population proportion! 2 b) Test the claim that the proportion is below 90%. You may use the fact that the p-value is 0.00042

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
Part B
Suppose you have a sample of 400 people. You asked each of the 400 people whether they like or dislike a
particular product. 320 people said that they like the product.
a) What is a 95% confidence interval for the population proportion!
2
b) Test the claim that the proportion is below 90%. You may use the fact that the p-value is 0.00042.
Transcribed Image Text:Part B Suppose you have a sample of 400 people. You asked each of the 400 people whether they like or dislike a particular product. 320 people said that they like the product. a) What is a 95% confidence interval for the population proportion! 2 b) Test the claim that the proportion is below 90%. You may use the fact that the p-value is 0.00042.
Expert Solution
steps

Step by step

Solved in 3 steps with 3 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