Question: You hypothesize that using the practice tests available on Sakai will improve grades by 6 percent, but have no previous research to support your hypothesis.

  1. You hypothesize that using the practice tests available on Sakai will improve grades by 6 percent, but have no previous research to support your hypothesis. The mean score for students in general on test 1 is 62.2 (st dev = 10.00)
    1. If you take 25 students who used the practice test and record their grades for the hypothesis test, what would be your power based on this information above if your hypothesis is correct?
    2. Is this an experiment you want to carry out? Why or why not? (Must provide statistical evidence to back up your decision, I.e interpret your answer from question a)

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