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Sampling Variability and Standard Error

Based on a simple random sample of one hundred an analyst estimates the average hourly wage earned by workers in a city to be $30 and computes the margin of error to be $5. Can we conclude from this that most workers there earn between $25 and $35 per hour? Is this the right interpretation for the margin of error?

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Based on a simple random sample of one hundred an analyst estimates the average hourly wage earned by workers in a city to be $30 and computes the margin of error to be $5. Can we conclude from this that most workers there earn between $25 and $35 per hour? Is this the right interpretation for the margin of error?

Limits of Confidence interval = ...

Solution Summary

Interprets the margin of error in Excels.

$2.19