Homework Help is Here – Start Your Trial Now!
Math
Statistics
If the candidate only wants a 7% margin of error at a 99% confidence level, what size of sample is needed? Give your answer in whole people.

If the candidate only wants a 7% margin of error at a 99% confidence level, what size of sample is needed? Give your answer in whole people.

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
A political candidate has asked you to conduct a poll to determine the percentage of people who support her. If the candidate only wants a 7% margin of error at a 99% confidence level, what size of sample is needed? Give your answer in whole people. Many people think that, in order for a sample to be representative of a population, the sample must be larger when the population is larger. In the work we did here, we did not consider the population size at all. In fact, in all our work with confidence intervals, we've never considered the size of the population. Reflect on the relationship between sample size and population size when we are doing inference.
Transcribed Image Text:A political candidate has asked you to conduct a poll to determine the percentage of people who support her. If the candidate only wants a 7% margin of error at a 99% confidence level, what size of sample is needed? Give your answer in whole people. Many people think that, in order for a sample to be representative of a population, the sample must be larger when the population is larger. In the work we did here, we did not consider the population size at all. In fact, in all our work with confidence intervals, we've never considered the size of the population. Reflect on the relationship between sample size and population size when we are doing inference.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

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