If a sample of size n = 25 is chosen from a normal population, which one of the following is a 95% confidence interval for the population mean when the sample mean is 50 and the sample standard deviation is 6.5? O 50 ± 2.064(6.5) O 50 ± 2.06(1.3) 50 2.06(6.5) O 50± 2,064(1.3)

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