# Minimum sample size given margin of error

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7-8. Use the given margin of error, confidence level, and population standard deviation (o) to find the minimum sample size required to estimate an unknown population means (u)

Margin of error: 0.5 inches, confidence level: 90%, o=2.7 inches

A confidence level of 90% requires a minimum sample size of ______

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#### Solution Summary

The expert examines the minimum sample size for a given margin of error.

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