Question: A statistics instructor is testing out a new online learning module for a placement test: they give all 45 students in the class a test

A statistics instructor is testing out a new online learning module for a placement test: they give all 45 students in the class a test before students use the new module, and then a test afterwards. They wish to test the claim that the new online learning module decreased placement scores at a significance level of a = 0.02. For the context of this problem, pd 2 \"AMP Before . 45 students took the test scores both before and after. The average difference in scores was -1.1 points, with a standard deviation of 5 points. H0 : pd = 0 HA 2 [1d

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