In a random sample of 520 adults, the mean was 150 and the standard deviation was 4.5. The study was reported with a 95% confidence level, and the confidence interval for the study was 150 ± 0.39. What range of values shows the confidence interval for the study? 146.1 to 153.9 149.61 to 150.39 150 to 150.39 150 to 153.9
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