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January 30, 2015

January 30, 2015

Posted by **Jennifer** on Saturday, December 5, 2009 at 7:18pm.

A) The university sampled all students at the university.

B) The product of the university's sample size and sample proportion was less than 10.

C) The university stops all new programs, but in fact retention is on the rise and the programs help.

D) The university concludes that retention is on the rise, but in fact the new programs do not help retention.

E) The university concludes that retention is on the rise since the retention rate can only increase.

- Math -
**PsyDAG**, Sunday, December 6, 2009 at 10:52amType I or alpha error is the probability of rejecting the null hypothesis when it is actually true.

http://en.wikipedia.org/wiki/Type_I_and_type_II_errors

http://www.stats.gla.ac.uk/steps/glossary/hypothesis_testing.html

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

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