A pollster wishes to estimate, with 90% confidence, the proportion of people who believe the United States should pursue a more aggresive foreign policy. Find the minimum sample size necessary to achieve a margin of error of less than 2%. Assuming no previous estimates are available. Round your answer up to the next integer. Assuming a previous estimate of 0.25. Round your answer up to the next integer.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 8E
icon
Related questions
Question

A pollster wishes to estimate, with 90% confidence, the proportion of people who believe the United States should pursue a more aggresive foreign policy.


Find the minimum sample size necessary to achieve a margin of error of less than 2%.

  1. Assuming no previous estimates are available. Round your answer up to the next integer.



  2. Assuming a previous estimate of 0.25. Round your answer up to the next integer.

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 3 images

Blurred answer
Knowledge Booster
Point Estimation, Limit Theorems, Approximations, and Bounds
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.
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning