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A random sample of 82 students from UPW College reveals a mean GPA of x with bar on top = 2.97 with a standard deviation

A random sample of 82 students from UPW College reveals a mean GPA of x with bar on top = 2.97 with a standard deviation of s = 0.75. Construct a 90% Confidence Interval for the mean GPA, , of UPW College students

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