le shop manager timed an employees and recorded the time, in minutes, it took them to chang a water pump. Assuming normality. Use Excel to find the 99% confidence interval for the true mean, Round your answers to three decimal places and use Increasing order, Time 18.4 15.0 1601 17.8 19.5 20.7 165 12.5 17.2 1318 17.9 19.1 9.8 23.8 18.7 19.1 15.0 19.2 17.0 145 15.7 22.5 23.7 199