I asked 10 people what they thought was an adaquit amount of time was to spend studying for a major college class and the results were.

6 hours, 8 hours, 3 hours, 5 hours, 10 hours, 15 hours, 8 hours, 6 hours, 9 hours and 10 hours.

Please provide the Mean, Standard variation, and Confidence intervals and also assume .05 as alpha value.