A poll reported 46% support for a statewide election with a margin of error of 3.33 percentage points. How many voters should be sampled for a 95% confidence interval? Round up to the nearest whole number.
A poll reported 46% support for a statewide election with a margin of error of 3.33 percentage points. How many voters should be sampled for a 95% confidence interval? Round up to the nearest whole number.
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 poll reported 46% support for a statewide election with a margin of error of 3.33 percentage points. How many voters should be sampled for a 95% confidence interval? Round up to the nearest whole number.
Transcribed Image Text:Critical values for quick reference during this activity.
Confidence level Critical value
1.645
0.90
0.95
0.99
457270.3064540.qx3zqy7
2*
=
2* = 1.960
Z*
=
2.576
Jump to level 1
A poll reported 46% support for a statewide election with a margin of error of
3.33 percentage points.
How many voters should be sampled for a 95% confidence interval? Round up
to the nearest whole number.
Ex: 1234 voters
Check
Next
2
3
4
Expert Solution
Step 1
Given:
The value of is 0.46.
The value of margin of error is .
The value of is 0.95.
The sample size is estimated as,
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
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