Question: You hypothesize that using the practice tests available on Sakai will improve grades by 5 percent, but have no previous research to support your hypothesis.

  • You hypothesize that using the practice tests available on Sakai will improve grades by 5 percent, but have no previous research to support your hypothesis. The mean score for students in general on test 1 is 64.0 (st dev = 12.1).

a) If you allow 49 students access to the practice tests what would be your power based on this information above if your hypothesis is correct?

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