A simple random sample of size n=40 is drawn from a population. The sample mean is found to be x line above=120.8 and the sample standard deviation...

A simple random sample of size n=40 is drawn from a population. The sample mean is found to be x line above=120.8 and the sample standard deviation is found to be s=12.1. Construct a​ 99% confidence interval for the population mean.

The lower bound is _

The upper bound is _