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 $125. Find a 99% confidence interval for the true mean daily wage of all union workers in the industry. Then complete the table below.
What is the lower limit of the 99% confidence interval?$
What is the upper limit of the 99% confidence interval?$