At 95% confidence, how large a sample should be taken to obtain a margin of error of 0.05 for the estimation of a population proportion? Assume that past data are not available for developing a planning value for p*. (Round your answer up to the nearest whole number.) 384

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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**Sample Size Determination for Population Proportion Estimation**

To determine the size of a sample necessary to achieve a margin of error of 0.05 at a 95% confidence level for estimating a population proportion, the following considerations are made:

- Margin of Error: 0.05
- Confidence Level: 95%
- Assumption: No past data available for developing a planning value for p*.
  
**Calculation Requirement:** 
Round your answer up to the nearest whole number.

**Attempted Solution:**
A student provided a sample size of 384, which was marked incorrect. 

---
This problem assumes a basic understanding of statistics, specifically in calculating sample sizes for population proportion estimations without pre-existing data.
Transcribed Image Text:**Sample Size Determination for Population Proportion Estimation** To determine the size of a sample necessary to achieve a margin of error of 0.05 at a 95% confidence level for estimating a population proportion, the following considerations are made: - Margin of Error: 0.05 - Confidence Level: 95% - Assumption: No past data available for developing a planning value for p*. **Calculation Requirement:** Round your answer up to the nearest whole number. **Attempted Solution:** A student provided a sample size of 384, which was marked incorrect. --- This problem assumes a basic understanding of statistics, specifically in calculating sample sizes for population proportion estimations without pre-existing data.
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