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A company hiring manager wants to know what the average wage is for employees with a...

A company hiring manager wants to know what the average wage is for employees with a specific certification. She randomly samples 216 certified individuals 1 and finds that ¯x and s are $36.60 per hour and $12.33 per hour, respectively. Estimate the average wage of people with this certification with 90% confidence.

Math   Statistics-And-Probability   
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