As part of group statistics project you've decided to determine the mean number of vechiles crossing busy bridge in your community each morning throughout rush hour for the past year. To do this you and your fellow students placed yourselves at one end of bridge on 18 randomly chosen mornings throughout the year and counted the number of vehicles crossing the bridge in 10 minute period throughout rush hour. You found the mean to be 125 vehicles per minute with standard deviation of 32.
Compute the 99% confidence interval for the population mean