How many voters should be sampled for a 99% 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
icon
Related questions
Topic Video
Question
100%
7.2.1: Confidence intervals for population proportions.
CHALLENGE ACTIVITY
Critical values for quick reference during this activity.
Confidence level Critical value
0.90
z*
1.645
0.95
z* = 1.960
0.99
z* = 2.576
Jump to level 1
A poll reported 70% support for a statewide election with a margin of error of
3.94 percentage points.
How many voters should be sampled for a 99% confidence interval? Round up
to the nearest whole number.
Ex: 1234
voters
3
Check
Niext
Transcribed Image Text:7.2.1: Confidence intervals for population proportions. CHALLENGE ACTIVITY Critical values for quick reference during this activity. Confidence level Critical value 0.90 z* 1.645 0.95 z* = 1.960 0.99 z* = 2.576 Jump to level 1 A poll reported 70% support for a statewide election with a margin of error of 3.94 percentage points. How many voters should be sampled for a 99% confidence interval? Round up to the nearest whole number. Ex: 1234 voters 3 Check Niext
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Quadrilaterals
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE 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