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Confidence interval for the true mean

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Reference no: EM132463642

Problem: The union for a particular industry has determined that the standard deviation of the daily wages of its workers is $18. A random sample of 90 workers in this industry has a mean daily wage of $125. Find a 99% confidence interval for the true mean daily wage of all union workers in the industry. Then complete the table below.

Question 1: What is the lower limit of the 99% confidence interval?

Question 2: What is the upper limit of the 99% confidence interval?

Reference no: EM132463642

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