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A Random Sample of 123 Students Living in Residence Has

Question 34

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A random sample of 123 students living in residence has been selected from the student body of a large university. The GPA for the student body as a whole is 2.59 and the mean for the sample is 2.47 with a standard deviation of 0.34. Is the difference statistically significant at the 0.05 level? Follow the five-step model and state all important decisions. Make sure that you interpret the results in terms of the original research question.

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Z (obtained) = -4.00.
With alpha set at ...

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