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Juan wants to estimate the percentage of people who own a tablet computer. He surveys 150 individuals and finds that 81 own a tablet computer.
Juan wants to estimate the percentage of people who own a tablet computer. He surveys 150 individuals and finds that 81 own a tablet computer.
Find the margin of error for the confidence interval for the population proportion with a 90% confidence level.
z0.10 | z0.05 | z0.025 | z0.01 | z0.005 |
1.282 | 1.645 | 1.960 | 2.326 | 2.576 |
Use the table of common z-scores above.
- Round the final answer to three decimal places.
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