Open Question: Statistics....HELP!!!?

A study found that the average time if took a person to find a new job was 5.9 months. If a sample of 36 job seekers was surveyed, find the 95% confidence interval of the mean. Assume the standard deviation is 0.8 months.

I really need help with these confidence questions. I just can't understand them and I have this huge assignment due. I don't even know how to write out the answer. Please help!

View the original article here