Mathematics, 01.08.2019 00:30 alyssanewsome

Determine the sample size needed to construct a 90% confidence interval to estimate the average gpa for the student population at a college with a margin of error equal to 0.5. assume the standard deviation of the gpa for the student population is 1.5.

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Determine the sample size needed to construct a 90% confidence interval to estimate the average gpa...