Homework Help is Here – Start Your Trial Now!
Math
Statistics
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 39 % . You would like to be 90% confident that your esimate is within 2% of the true population proportion. How large of a sample size is required? Do not round mid-calculation. Submit Question

You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 39 % . You would like to be 90% confident that your esimate is within 2% of the true population proportion. How large of a sample size is required? Do not round mid-calculation. Submit Question

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
Please help with the solution not sure of my answers. Thanks
**Question 4** You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately \( \hat{p} = 39\% \). You would like to be 90% confident that your estimate is within 2% of the true population proportion. How large of a sample size is required? *Do not round mid-calculation.* [Submit Question Button]
Transcribed Image Text:**Question 4** You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately \( \hat{p} = 39\% \). You would like to be 90% confident that your estimate is within 2% of the true population proportion. How large of a sample size is required? *Do not round mid-calculation.* [Submit Question Button]
Expert Solution
Step 1

Given,sample proportion(p^)=0.39margin of error(E)=0.02α=1-0.90=0.1α2=0.05Z0.05=1.645  (from Z-table)

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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
SEE MORE TEXTBOOKS