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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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