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You want to do a study of where students sit and their GPA. You know the population standard deviation ofstudent's GPA is 1.25. You want

You want to do a study of where students sit and their GPA.

You know the population standard deviation ofstudent's GPA is 1.25. You want to be90% confident that the mean is within 0.25 points.

What is the minimum number of students you shouldsurvey?

ConfidenceLevel:

Standarddeviation:

Width:

Minimum SampleSize:

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