Posted by Karen Johnson on Saturday, July 17, 2010 at 2:03pm.
Do students at various universities differ in how sociable they are? Twentyfive students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with their students. The result for University X was a mean of 5 hours and an estimated population variance of 2 hours; for University Y, ; and for University Z, What should you conclude?

college  SraJMcGin, Saturday, July 17, 2010 at 2:11pm
Of course there is a difference! It would depend upon the size of the university/college, the curriculum a student has, even a student's temperament/personality. Even the year of study makes a difference. What would YOU conclude?
Sra

college  drwls, Saturday, July 17, 2010 at 4:00pm
You have omitted the statistical data for Colleges Y and Z. This would be needed for a mathematical assessment of the hypothesis.
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