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A study is conducted to assess the Vitamin D levels of online MPH students. In the study, 250 graduate students are randomly selected and the

A study is conducted to assess the Vitamin D levels of online MPH students. In the study, 250 graduate students are randomly selected and the sample mean of Vitamin D levels is 41 ng/mL and the sample standard deviation is 16.6 ng/L. If you were calculating a 95% confidence interval for the true mean of Vitamin D what would be the critical value? A. 1.970 B. 1.651 C. 3.302 D. 1.051 E. 1.675

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