A simple random sample of size n equals 40 is drawn from a population. The sample mean is found to be x overbar equals 120.9 and the sample standard deviation is found to be s equals 13.4. Construct a​ 99% confidence interval for the population mean.
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Part 1
The lower bound is _____.​ (Round to two decimal places as​ needed.)
Part 2
The upper bound is _____. (Round to two decimal places as needed)