An automobile insurance company wants to estimate the mean time workers who are employed in the downtown office spend getting to work. A sample of 15 workers reveals the following number of minutes travelled:

 29, 38, 38, 33, 38, 21, 45, 34, 37, 42, 30, 29, 35

Develop a 98% confidence interval for the population mean.

Confidence interval for the population mean ____ and ____.