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2. A confidence interval for the population mean based on 16 individuals has been reported to (34.14, 39.26). The sample standard deviation of the collected

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2. A confidence interval for the population mean based on 16 individuals has been reported to (34.14, 39.26). The sample standard deviation of the collected data is 6.74. What is the percentage of the reported confidence interval given that the population standard deviation is unknown? Give your answer rounded to the nearest percent

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