Confidence Interval or the lack of it.......

It is 1581Anno Domini. At the Undergraduate School of UMUC, besides Assistant Academic Director of Mathematics and Statistics, I am also the Undergraduate School-appointed CPA, Coffee Pot Attendant.

It is a very important office sponsored by the Holy See.

I have taken this job very seriously, because I believe that I am the key to increased productivity at the Undergraduate School.Why, by mid-morning, many of my colleagues act as if they were

It is imperative that I restore productivity via a secret naturally-occurring molecule, caffeine........

In order to see if my secret molecule works, I have observed the time, in hours, a random selection of ten of my colleagueswhocould stay awake at the extremely long-winded Dean's meeting as soon as it started. Oh, yes, one fell asleep even before the meeting started!

1.9	0.8	1.1	0.1	-0.1
4.4	5.5	1.6	4.6	3.4

Disclaimer: I was not in the picture above.

Now, I have to complete a report to the Provost's Office on the effectiveness of my secret molecule so that UMUC can file for a patent at the United Provinces Patent and Trademark Office as soon as possible. Oh, yes, I am waiting for a handsome reward from the Provost.....

But I need the following information:

• What is a 95% confidence interval for the time my colleagues can stay awake on average for all of my colleagues?
• Was my secret molecule effective in increasing their attention span, I mean, staying awake? And, please explain.....