First-semester GPAs for a random sample of 30 freshmen at a large university are given in the
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First-semester GPAs for a random sample of 30 freshmen at a large university are given in the attached spreadsheet. Estimate the true mean GPA of the freshmen class with 99% confidence.
A. 2.04 < μ < 3.24
B. 2.66 < μ < 3.04
C. 2.79 < μ < 2.91
D. 2.53 < μ < 3.17
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