You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 39%. You would like to be 90% confident that your estimate is within 1.5% of the true population proportion. How large of a sample size is required?- **Hint:** Video [link]- **n =** [input box]- **Submit Question** [button]

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Description: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 39%. You would like to be 90% confident that your estimate is within 1.5% of the true population prop

Answered: You want to obtain a sample to estimate…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 39%. You would like to be 90% confident that your estimate is within 1.5% of the true population proportion. How large of a sample size is required?

- **Hint:** Video [link]
- **n =** [input box]
- **Submit Question** [button]

Expert Solution

Step 1

From the given information,

Margin error (E) = 0.015

Population proportion = 0.39

The objective is finding the sample size.

Critical value:

Using z-table, the z-critical value at the given significance level of α = 0.10 is,

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