Question: What if the research question in problem 7.2 were changed to Do seniors cut a significantly greater number of classes? How would the test change?

What if the research question in problem 7.2 were changed to "Do seniors cut a significantly greater number of classes"? How would the test change?
(This wording implies a one-tailed test of significance. How would the research hypothesis change? For the alpha you used in problem 7.2, what would the value of Z(critical) be?)

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