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I have observed the time, in hours, a random selection of ten of my colleagues who could 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

What is a 95% confidence interval for the time my colleagues can stay awake on average for all of my colleagues?

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